LM118/LM218/LM318
Operational Amplifiers
General Description
The LM118 series are precision high speed operational amplifiers
designed for applications requiring wide bandwidth
and high slew rate. They feature a factor of ten increase in
speed over general purpose devices without sacrificing DC
performance.
The LM118 series has internal unity gain frequency compensation.
This considerably simplifies its application since no
external components are necessary for operation. However,
unlike most internally compensated amplifiers, external frequency
compensation may be added for optimum performance.
For inverting applications, feedforward compensation
will boost the slew rate to over 150V/μs and almost
double the bandwidth. Overcompensation can be used with
the amplifier for greater stability when maximum bandwidth
is not needed. Further, a single capacitor can be added to
reduce the 0.1% settling time to under 1 μs.
The high speed and fast settling time of these op amps make
them useful in A/D converters, oscillators, active filters,
Click here to download National Semiconductor pdf datasheets LM118/LM218/LM318 Operational Amplifiers
Datasheets Download-National Semiconductor pdf datasheets download
Showing posts with label L. Show all posts
Showing posts with label L. Show all posts
Monday, May 13, 2013
LM1876 Overture™ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes
LM1876 Overture™ Audio Power Amplifier Series
Dual 20W Audio Power Amplifier with Mute and Standby
Modes
General Description
The LM1876 is a stereo audio amplifier capable of delivering
typically 20W per channel of continuous average output
power into a 4Ω or 8Ω load with less than 0.1% THD+N.
Each amplifier has an independent smooth transition fadein/
out mute and a power conserving standby mode which
can be controlled by external logic.
The performance of the LM1876, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
places it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe
Operating Area (SOA). SPiKe protection means that these
parts are safeguarded at the output against overvoltage,
undervoltage, overloads, including thermal runaway and instantaneous
temperature peaks.
Key Specifications
jTHD+N at 1kHz at 2 x 15W continuous average
output power into 4Ω or 8Ω: 0.1% (max)
jTHD+N at 1kHz at continuous average
output power of 2 x 20W into 8Ω: 0.009% (typ)
jStandby current: 4.2mA (typ)
Features
n SPiKe protection
n Minimal amount of external components necessary
n Quiet fade-in/out mute mode
n Standby-mode
n Isolated 15-lead TO-220 package
n Non-Isolated 15-lead TO-220 package
n Wide supply range 20V - 64V
Applications
n High-end stereo TVs
n Component stereo
n Compact stereo
Click here to download National Semiconductor pdf datasheets LM1876 Overture™ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes
Datasheets Download-National Semiconductor pdf datasheets download
Dual 20W Audio Power Amplifier with Mute and Standby
Modes
General Description
The LM1876 is a stereo audio amplifier capable of delivering
typically 20W per channel of continuous average output
power into a 4Ω or 8Ω load with less than 0.1% THD+N.
Each amplifier has an independent smooth transition fadein/
out mute and a power conserving standby mode which
can be controlled by external logic.
The performance of the LM1876, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
places it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe
Operating Area (SOA). SPiKe protection means that these
parts are safeguarded at the output against overvoltage,
undervoltage, overloads, including thermal runaway and instantaneous
temperature peaks.
Key Specifications
jTHD+N at 1kHz at 2 x 15W continuous average
output power into 4Ω or 8Ω: 0.1% (max)
jTHD+N at 1kHz at continuous average
output power of 2 x 20W into 8Ω: 0.009% (typ)
jStandby current: 4.2mA (typ)
Features
n SPiKe protection
n Minimal amount of external components necessary
n Quiet fade-in/out mute mode
n Standby-mode
n Isolated 15-lead TO-220 package
n Non-Isolated 15-lead TO-220 package
n Wide supply range 20V - 64V
Applications
n High-end stereo TVs
n Component stereo
n Compact stereo
Click here to download National Semiconductor pdf datasheets LM1876 Overture™ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes
Datasheets Download-National Semiconductor pdf datasheets download
LM146/LM346 Programmable Quad Operational Amplifiers National Semiconductor pdf datasheets download
LM146/LM346
Programmable Quad Operational Amplifiers
General Description
The LM146 series of quad op amps consists of four independent,
high gain, internally compensated, low power, programmable
amplifiers. Two external resistors (RSET) allow
the user to program the gain bandwidth product, slew rate,
supply current, input bias current, input offset current and
input noise. For example, the user can trade-off supply
current for bandwidth or optimize noise figure for a given
source resistance. In a similar way, other amplifier characteristics
can be tailored to the application. Except for the two
programming pins at the end of the package, the LM146
pin-out is the same as the LM124 and LM148.
Features
(ISET=10 μA)
n Programmable electrical characteristics
n Battery-powered operation
n Low supply current: 350 μA/amplifier
n Guaranteed gain bandwidth product: 0.8 MHz min
n Large DC voltage gain: 120 dB
n Low noise voltage: 28
n Wide power supply range: ±1.5V to ±22V
n Class AB output stage–no crossover distortion
n Ideal pin out for Biquad active filters
n Input bias currents are temperature compensated
Click here to download National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download LM146/LM346 Programmable Quad Operational Amplifiers
Programmable Quad Operational Amplifiers
General Description
The LM146 series of quad op amps consists of four independent,
high gain, internally compensated, low power, programmable
amplifiers. Two external resistors (RSET) allow
the user to program the gain bandwidth product, slew rate,
supply current, input bias current, input offset current and
input noise. For example, the user can trade-off supply
current for bandwidth or optimize noise figure for a given
source resistance. In a similar way, other amplifier characteristics
can be tailored to the application. Except for the two
programming pins at the end of the package, the LM146
pin-out is the same as the LM124 and LM148.
Features
(ISET=10 μA)
n Programmable electrical characteristics
n Battery-powered operation
n Low supply current: 350 μA/amplifier
n Guaranteed gain bandwidth product: 0.8 MHz min
n Large DC voltage gain: 120 dB
n Low noise voltage: 28
n Wide power supply range: ±1.5V to ±22V
n Class AB output stage–no crossover distortion
n Ideal pin out for Biquad active filters
n Input bias currents are temperature compensated
Click here to download National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download LM146/LM346 Programmable Quad Operational Amplifiers
LM185-1.2/LM285-1.2/LM385-1.2 Micropower Voltage Reference Diode
LM185-1.2/LM285-1.2/LM385-1.2
Micropower Voltage Reference Diode
General Description
The LM185-1.2/LM285-1.2/LM385-1.2 are micropower 2-terminal
band-gap voltage regulator diodes. Operating over a
10μA to 20mA current range, they feature exceptionally low
dynamic impedance and good temperature stability. On-chip
trimming is used to provide tight voltage tolerance. Since the
LM185-1.2 band-gap reference uses only transistors and resistors,
low noise and good long term stability result.
Careful design of the LM185-1.2 has made the device exceptionally
tolerant of capacitive loading, making it easy to use in
almost any reference application. The wide dynamic operating
range allows its use with widely varying supplies with
excellent regulation.
The extremely low power drain of the LM185-1.2 makes it
useful for micropower circuitry. This voltage reference can be
used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life.
Further, the wide operating current allows it to replace older
references with a tighter tolerance part.
The LM185-1.2 is rated for operation over a −55°C to 125°C
temperature range while the LM285-1.2 is rated −40°C to 85°
C and the LM385-1.2 0°C to 70°C. The LM185-1.2/LM285-1.2
are available in a hermetic TO-46 package and the
LM285-1.2/LM385-1.2 are also available in a low-cost TO-92
molded package, as well as SO and SOT-23. The LM185-1.2
is also available in a hermetic leadless chip carrier package.
Features
■ ±1% and 2% initial tolerance
■ Operating current of 10μA to 20mA
■ 1Ω dynamic impedance
■ Low temperature coefficient
■ Low voltage reference—1.235V
■ 2.5V device and adjustable device also available
■ LM185-2.5 series and LM185 series, respectively
Click here to download National Semiconductor pdf datasheets LM185-1.2/LM285-1.2/LM385-1.2 Micropower Voltage Reference Diode
Datasheets Download-National Semiconductor pdf datasheets
Micropower Voltage Reference Diode
General Description
The LM185-1.2/LM285-1.2/LM385-1.2 are micropower 2-terminal
band-gap voltage regulator diodes. Operating over a
10μA to 20mA current range, they feature exceptionally low
dynamic impedance and good temperature stability. On-chip
trimming is used to provide tight voltage tolerance. Since the
LM185-1.2 band-gap reference uses only transistors and resistors,
low noise and good long term stability result.
Careful design of the LM185-1.2 has made the device exceptionally
tolerant of capacitive loading, making it easy to use in
almost any reference application. The wide dynamic operating
range allows its use with widely varying supplies with
excellent regulation.
The extremely low power drain of the LM185-1.2 makes it
useful for micropower circuitry. This voltage reference can be
used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life.
Further, the wide operating current allows it to replace older
references with a tighter tolerance part.
The LM185-1.2 is rated for operation over a −55°C to 125°C
temperature range while the LM285-1.2 is rated −40°C to 85°
C and the LM385-1.2 0°C to 70°C. The LM185-1.2/LM285-1.2
are available in a hermetic TO-46 package and the
LM285-1.2/LM385-1.2 are also available in a low-cost TO-92
molded package, as well as SO and SOT-23. The LM185-1.2
is also available in a hermetic leadless chip carrier package.
Features
■ ±1% and 2% initial tolerance
■ Operating current of 10μA to 20mA
■ 1Ω dynamic impedance
■ Low temperature coefficient
■ Low voltage reference—1.235V
■ 2.5V device and adjustable device also available
■ LM185-2.5 series and LM185 series, respectively
Click here to download National Semiconductor pdf datasheets LM185-1.2/LM285-1.2/LM385-1.2 Micropower Voltage Reference Diode
Datasheets Download-National Semiconductor pdf datasheets
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
LF198/LF298/LF398, LF198A/LF398A
Monolithic Sample-and-Hold Circuits
General Description
The LF198/LF298/LF398 are monolithic sample-and-hold
circuits which utilize BI-FET technology to obtain ultra-high
dc accuracy with fast acquisition of signal and low droop
rate. Operating as a unity gain follower, dc gain accuracy is
0.002% typical and acquisition time is as low as 6 μs to
0.01%. A bipolar input stage is used to achieve low offset
voltage and wide bandwidth. Input offset adjust is accomplished
with a single pin, and does not degrade input offset
drift. The wide bandwidth allows the LF198 to be included inside
the feedback loop of 1 MHz op amps without having stability
problems. Input impedance of 1010W allows high
source impedances to be used without degrading accuracy.
P-channel junction FET’s are combined with bipolar devices
in the output amplifier to give droop rates as low as 5 mV/min
with a 1 μF hold capacitor. The JFET’s have much lower
noise than MOS devices used in previous designs and do
not exhibit high temperature instabilities. The overall design
guarantees no feed-through from input to output in the hold
mode, even for input signals equal to the supply voltages.
Features
n Operates from ±5V to ±18V supplies
n Less than 10 μs acquisition time
n TTL, PMOS, CMOS compatible logic input
n 0.5 mV typical hold step at Ch = 0.01 μF
n Low input offset
n 0.002% gain accuracy
n Low output noise in hold mode
n Input characteristics do not change during hold mode
n High supply rejection ratio in sample or hold
n Wide bandwidth
n Space qualified, JM38510
Logic inputs on the LF198 are fully differential with low input
current, allowing direct connection to TTL, PMOS, and
CMOS. Differential threshold is 1.4V. The LF198 will operate
from ±5V to ±18V supplies.
An “A” version is available with tightened electrical
specifications.
Click here to download National Semiconductor pdf datasheets LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
Datasheets Download-National Semiconductor pdf datasheets download
Monolithic Sample-and-Hold Circuits
General Description
The LF198/LF298/LF398 are monolithic sample-and-hold
circuits which utilize BI-FET technology to obtain ultra-high
dc accuracy with fast acquisition of signal and low droop
rate. Operating as a unity gain follower, dc gain accuracy is
0.002% typical and acquisition time is as low as 6 μs to
0.01%. A bipolar input stage is used to achieve low offset
voltage and wide bandwidth. Input offset adjust is accomplished
with a single pin, and does not degrade input offset
drift. The wide bandwidth allows the LF198 to be included inside
the feedback loop of 1 MHz op amps without having stability
problems. Input impedance of 1010W allows high
source impedances to be used without degrading accuracy.
P-channel junction FET’s are combined with bipolar devices
in the output amplifier to give droop rates as low as 5 mV/min
with a 1 μF hold capacitor. The JFET’s have much lower
noise than MOS devices used in previous designs and do
not exhibit high temperature instabilities. The overall design
guarantees no feed-through from input to output in the hold
mode, even for input signals equal to the supply voltages.
Features
n Operates from ±5V to ±18V supplies
n Less than 10 μs acquisition time
n TTL, PMOS, CMOS compatible logic input
n 0.5 mV typical hold step at Ch = 0.01 μF
n Low input offset
n 0.002% gain accuracy
n Low output noise in hold mode
n Input characteristics do not change during hold mode
n High supply rejection ratio in sample or hold
n Wide bandwidth
n Space qualified, JM38510
Logic inputs on the LF198 are fully differential with low input
current, allowing direct connection to TTL, PMOS, and
CMOS. Differential threshold is 1.4V. The LF198 will operate
from ±5V to ±18V supplies.
An “A” version is available with tightened electrical
specifications.
Click here to download National Semiconductor pdf datasheets LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
Datasheets Download-National Semiconductor pdf datasheets download
LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs
LM3404/04HV
1.0A Constant Current Buck Regulator for Driving High
Power LEDs
General Description
The LM3404/04HV are monolithic switching regulators designed
to deliver constant currents to high power LEDs. Ideal
for automotive, industrial, and general lighting applications,
they contain a high-side N-channel MOSFET switch with a
current limit of 1.5A (typical) for step-down (Buck) regulators.
Hysteretic controlled on-time and an external resistor allow
the converter output voltage to adjust as needed to deliver a
constant current to series and series-parallel connected LED
arrays of varying number and type. LED dimming via pulse
width modulation (PWM), broken/open LED protection, lowpower
shutdown and thermal shutdown complete the feature
set.
Features
■ Integrated 1.0A MOSFET
■ VIN Range 6V to 42V (LM3404)
■ VIN Range 6V to 75V (LM3404HV)
■ 1.2A Output Current Over Temperature
■ Cycle-by-Cycle Current Limit
■ No Control Loop Compensation Required
■ Separate PWM Dimming and Low Power Shutdown
■ Supports all-ceramic output capacitors and capacitor-less
outputs
■ Thermal shutdown protection
■ SO-8 Package, PSOP-8 Package
Applications
■ LED Driver
■ Constant Current Source
■ Automotive Lighting
■ General Illumination
■ Industrial Lighting
Click here to download National Semiconductor pdf datasheets LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs
Datasheets Download-National Semiconductor pdf datasheets download
1.0A Constant Current Buck Regulator for Driving High
Power LEDs
General Description
The LM3404/04HV are monolithic switching regulators designed
to deliver constant currents to high power LEDs. Ideal
for automotive, industrial, and general lighting applications,
they contain a high-side N-channel MOSFET switch with a
current limit of 1.5A (typical) for step-down (Buck) regulators.
Hysteretic controlled on-time and an external resistor allow
the converter output voltage to adjust as needed to deliver a
constant current to series and series-parallel connected LED
arrays of varying number and type. LED dimming via pulse
width modulation (PWM), broken/open LED protection, lowpower
shutdown and thermal shutdown complete the feature
set.
Features
■ Integrated 1.0A MOSFET
■ VIN Range 6V to 42V (LM3404)
■ VIN Range 6V to 75V (LM3404HV)
■ 1.2A Output Current Over Temperature
■ Cycle-by-Cycle Current Limit
■ No Control Loop Compensation Required
■ Separate PWM Dimming and Low Power Shutdown
■ Supports all-ceramic output capacitors and capacitor-less
outputs
■ Thermal shutdown protection
■ SO-8 Package, PSOP-8 Package
Applications
■ LED Driver
■ Constant Current Source
■ Automotive Lighting
■ General Illumination
■ Industrial Lighting
Click here to download National Semiconductor pdf datasheets LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs
Datasheets Download-National Semiconductor pdf datasheets download
LM6165/LM6265/LM6365 High Speed Operational Amplifier download National Semiconductor pdf datasheets
LM6165/LM6265/LM6365
High Speed Operational Amplifier
General Description
The LM6165 family of high-speed amplifiers exhibits an excellent
speed-power product in delivering 300 V/μs and
725 MHz GBW (stable for gains as low as +25) with only
5 mA of supply current. Further power savings and application
convenience are possible by taking advantage of the
wide dynamic range in operating supply voltage which extends
all the way down to +5V.
These amplifiers are built with National’s VIP™ (Vertically Integrated
PNP) process which produces fast PNP transistors
that are true complements to the already fast NPN devices.
This advanced junction-isolated process delivers high speed
performance without the need for complex and expensive dielectric
isolation.
Features
n High slew rate: 300 V/μs
n High GBW product: 725 MHz
n Low supply current: 5 mA
n Fast settling: 80 ns to 0.1%
n Low differential gain: <0.1%
n Low differential phase: <0.1°
n Wide supply range: 4.75V to 32V
n Stable with unlimited capacitive load
Applications
n Video amplifier
n Wide-bandwidth signal conditioning
n Radar
n Sonar
Click here to download National Semiconductor pdf datasheets LM6165/LM6265/LM6365 High Speed Operational Amplifier
Datasheets Download-National Semiconductor pdf datasheets download
High Speed Operational Amplifier
General Description
The LM6165 family of high-speed amplifiers exhibits an excellent
speed-power product in delivering 300 V/μs and
725 MHz GBW (stable for gains as low as +25) with only
5 mA of supply current. Further power savings and application
convenience are possible by taking advantage of the
wide dynamic range in operating supply voltage which extends
all the way down to +5V.
These amplifiers are built with National’s VIP™ (Vertically Integrated
PNP) process which produces fast PNP transistors
that are true complements to the already fast NPN devices.
This advanced junction-isolated process delivers high speed
performance without the need for complex and expensive dielectric
isolation.
Features
n High slew rate: 300 V/μs
n High GBW product: 725 MHz
n Low supply current: 5 mA
n Fast settling: 80 ns to 0.1%
n Low differential gain: <0.1%
n Low differential phase: <0.1°
n Wide supply range: 4.75V to 32V
n Stable with unlimited capacitive load
Applications
n Video amplifier
n Wide-bandwidth signal conditioning
n Radar
n Sonar
Click here to download National Semiconductor pdf datasheets LM6165/LM6265/LM6365 High Speed Operational Amplifier
Datasheets Download-National Semiconductor pdf datasheets download
Sunday, May 12, 2013
LMV331 Single / LMV393 Dual / LMV339 Quad General Purpose, Low Voltage, Tiny Pack Comparators
LMV331 Single / LMV393 Dual / LMV339 Quad
General Purpose, Low Voltage, Tiny Pack Comparators
General Description
The LMV393 and LMV339 are low voltage (2.7-5V) versions
of the dual and quad comparators, LM393/339, which are
specified at 5-30V. The LMV331 is the single version, which
is available in space saving 5-pin SC70 and 5-pin SOT23
packages. The 5-pin SC70 is approximately half the size of
the 5-pin SOT23.
The LMV393 is available in 8-pin SOIC and MSOP. The
LMV339 is available in 14-pin SOIC and TSSOP.
The LMV331/393/339 is the most cost-effective solution
where space, low voltage, low power and price are the primary
specification in circuit design for portable consumer
products. They offer specifications that meet or exceed the
familiar LM393/339 at a fraction of the supply current.
The chips are built with National's advanced Submicron Silicon-
Gate BiCMOS process. The LMV331/393/339 have bipolar
input and output stages for improved noise performance.
Features
(For 5V supply, typical unless otherwise noted)
■ Guaranteed 2.7V and 5V performance
■ Industrial temperature range −40°C to +85°C
■ Low supply current 60 μA/Channel
■ Input common mode voltage range includes ground
■ Low output saturation voltage 200 mV
■ Propagation delay 200 ns
■ Space saving 5-pin SC70 and 5-Pin SOT23 packages
Applications
■ Mobile communications
■ Notebooks and PDA's
■ Battery powered electronics
■ General purpose portable device
■ General purpose low voltage applications
Click here to download National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
General Purpose, Low Voltage, Tiny Pack Comparators
General Description
The LMV393 and LMV339 are low voltage (2.7-5V) versions
of the dual and quad comparators, LM393/339, which are
specified at 5-30V. The LMV331 is the single version, which
is available in space saving 5-pin SC70 and 5-pin SOT23
packages. The 5-pin SC70 is approximately half the size of
the 5-pin SOT23.
The LMV393 is available in 8-pin SOIC and MSOP. The
LMV339 is available in 14-pin SOIC and TSSOP.
The LMV331/393/339 is the most cost-effective solution
where space, low voltage, low power and price are the primary
specification in circuit design for portable consumer
products. They offer specifications that meet or exceed the
familiar LM393/339 at a fraction of the supply current.
The chips are built with National's advanced Submicron Silicon-
Gate BiCMOS process. The LMV331/393/339 have bipolar
input and output stages for improved noise performance.
Features
(For 5V supply, typical unless otherwise noted)
■ Guaranteed 2.7V and 5V performance
■ Industrial temperature range −40°C to +85°C
■ Low supply current 60 μA/Channel
■ Input common mode voltage range includes ground
■ Low output saturation voltage 200 mV
■ Propagation delay 200 ns
■ Space saving 5-pin SC70 and 5-Pin SOT23 packages
Applications
■ Mobile communications
■ Notebooks and PDA's
■ Battery powered electronics
■ General purpose portable device
■ General purpose low voltage applications
Click here to download National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
download National Semiconductor pdf datasheets LM3421, LM3423 N-Channel Controllers for Constant Current LED Drivers
LM3421, LM3423
N-Channel Controllers for Constant Current LED Drivers
General Description
The LM3421/LM3423 devices are versatile high voltage LED
driver controllers. With the capability to be configured in a
Buck, Boost, Buck-Boost (Flyback), or SEPIC topology, and
an input operating voltage rating of 75V, these controllers are
ideal for illuminating LEDs in a very diverse, large family of
applications.
Adjustable high-side current sense with a typical sense voltage
of 100mV allows for tight regulation of the LED current
with the highest efficiency possible. Output LED current regulation
is based on peak current-mode control with predictive
Off-Time Control. This method of control eases the design of
loop compensation while providing inherent input voltage
feed-forward compensation.
The LM3421/LM3423 include a high-voltage startup regulator
that operates over a wide input range of 4.5V to 75V. The
internal PWM controller is designed for adjustable switching
frequencies of up to 2.0MHz, thus enabling compact solutions.
Additional features include: “zero” current shutdown,
precision reference, logic compatible DIM input suitable for
fast PWM dimming, cycle-by-cycle current limit, and thermal
shutdown.
The LM3423 also includes an LED output status flag, a fault
flag, a programmable fault timer, and a logic input to select
the polarity of the dimming output driver.
Click here to download National Semiconductor pdf datasheets LM3421, LM3423 N-Channel Controllers for Constant Current LED Drivers
Datasheets Download-National Semiconductor pdf datasheets download
N-Channel Controllers for Constant Current LED Drivers
General Description
The LM3421/LM3423 devices are versatile high voltage LED
driver controllers. With the capability to be configured in a
Buck, Boost, Buck-Boost (Flyback), or SEPIC topology, and
an input operating voltage rating of 75V, these controllers are
ideal for illuminating LEDs in a very diverse, large family of
applications.
Adjustable high-side current sense with a typical sense voltage
of 100mV allows for tight regulation of the LED current
with the highest efficiency possible. Output LED current regulation
is based on peak current-mode control with predictive
Off-Time Control. This method of control eases the design of
loop compensation while providing inherent input voltage
feed-forward compensation.
The LM3421/LM3423 include a high-voltage startup regulator
that operates over a wide input range of 4.5V to 75V. The
internal PWM controller is designed for adjustable switching
frequencies of up to 2.0MHz, thus enabling compact solutions.
Additional features include: “zero” current shutdown,
precision reference, logic compatible DIM input suitable for
fast PWM dimming, cycle-by-cycle current limit, and thermal
shutdown.
The LM3423 also includes an LED output status flag, a fault
flag, a programmable fault timer, and a logic input to select
the polarity of the dimming output driver.
Click here to download National Semiconductor pdf datasheets LM3421, LM3423 N-Channel Controllers for Constant Current LED Drivers
Datasheets Download-National Semiconductor pdf datasheets download
LM139/LM239/LM339/LM2901/LM3302 download LM313 National Semiconductor pdf datasheets
LM139/LM239/LM339/LM2901/LM3302
Low Power Low Offset Voltage Quad Comparators
General Description
The LM139 series consists of four independent precision
voltage comparators with an offset voltage specification as
low as 2 mV max for all four comparators. These were
designed specifically to operate from a single power supply
over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current
drain is independent of the magnitude of the power supply
voltage. These comparators also have a unique characteristic
in that the input common-mode voltage range includes
ground, even though operated from a single power supply
voltage.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay generators;
wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM139 series was
designed to directly interface with TTL and CMOS. When
operated from both plus and minus power supplies, they will
directly interface with MOS logic— where the low power
drain of the LM339 is a distinct advantage over standard
comparators.
Features
n Wide supply voltage range
n LM139/139A Series 2 to 36 VDC or ±1 to ±18 VDC
n LM2901: 2 to 36 VDC or ±1 to ±18 VDC
n LM3302: 2 to 28 VDC or ±1 to ±14 VDC
n Very low supply current drain (0.8 mA) — independent
of supply voltage
n Low input biasing current: 25 nA
n Low input offset current: ±5 nA
n Offset voltage: ±3 mV
n Input common-mode voltage range includes GND
n Differential input voltage range equal to the power
supply voltage
n Low output saturation voltage: 250 mV at 4 mA
n Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n High precision comparators
n Reduced VOS drift over temperature
n Eliminates need for dual supplies
n Allows sensing near GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Click here to download LM313 National Semiconductor pdf datasheets LM139/LM239/LM339/LM2901/LM3302
Datasheets Download-National Semiconductor pdf datasheets download
Low Power Low Offset Voltage Quad Comparators
General Description
The LM139 series consists of four independent precision
voltage comparators with an offset voltage specification as
low as 2 mV max for all four comparators. These were
designed specifically to operate from a single power supply
over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current
drain is independent of the magnitude of the power supply
voltage. These comparators also have a unique characteristic
in that the input common-mode voltage range includes
ground, even though operated from a single power supply
voltage.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay generators;
wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM139 series was
designed to directly interface with TTL and CMOS. When
operated from both plus and minus power supplies, they will
directly interface with MOS logic— where the low power
drain of the LM339 is a distinct advantage over standard
comparators.
Features
n Wide supply voltage range
n LM139/139A Series 2 to 36 VDC or ±1 to ±18 VDC
n LM2901: 2 to 36 VDC or ±1 to ±18 VDC
n LM3302: 2 to 28 VDC or ±1 to ±14 VDC
n Very low supply current drain (0.8 mA) — independent
of supply voltage
n Low input biasing current: 25 nA
n Low input offset current: ±5 nA
n Offset voltage: ±3 mV
n Input common-mode voltage range includes GND
n Differential input voltage range equal to the power
supply voltage
n Low output saturation voltage: 250 mV at 4 mA
n Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n High precision comparators
n Reduced VOS drift over temperature
n Eliminates need for dual supplies
n Allows sensing near GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Click here to download LM313 National Semiconductor pdf datasheets LM139/LM239/LM339/LM2901/LM3302
Datasheets Download-National Semiconductor pdf datasheets download
LM135/LM235/LM335, LM135A/LM235A/LM335A Precision Temperature Sensors
LM135/LM235/LM335, LM135A/LM235A/LM335A
Precision Temperature Sensors
General Description
The LM135 series are precision, easily-calibrated, integrated
circuit temperature sensors. Operating as a 2-terminal zener,
the LM135 has a breakdown voltage directly proportional to
absolute temperature at +10 mV/°K. With less than 1W dynamic
impedance the device operates over a current range
of 400 μA to 5 mA with virtually no change in performance.
When calibrated at 25°C the LM135 has typically less than
1°C error over a 100°C temperature range. Unlike other
sensors the LM135 has a linear output.
Applications for the LM135 include almost any type of temperature
sensing over a −55°C to +150°C temperature
range. The low impedance and linear output make interfacing
to readout or control circuitry especially easy.
The LM135 operates over a −55°C to +150°C temperature
range while the LM235 operates over a −40°C to +125°C
temperature range. The LM335 operates from −40°C to
+100°C. The LM135/LM235/LM335 are available packaged
in hermetic TO-46 transistor packages while the LM335 is
also available in plastic TO-92 packages.
Features
n Directly calibrated in °Kelvin
n 1°C initial accuracy available
n Operates from 400 μA to 5 mA
n Less than 1W dynamic impedance
n Easily calibrated
n Wide operating temperature range
n 200°C overrange
n Low cost
Click here to download LM313 National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
Precision Temperature Sensors
General Description
The LM135 series are precision, easily-calibrated, integrated
circuit temperature sensors. Operating as a 2-terminal zener,
the LM135 has a breakdown voltage directly proportional to
absolute temperature at +10 mV/°K. With less than 1W dynamic
impedance the device operates over a current range
of 400 μA to 5 mA with virtually no change in performance.
When calibrated at 25°C the LM135 has typically less than
1°C error over a 100°C temperature range. Unlike other
sensors the LM135 has a linear output.
Applications for the LM135 include almost any type of temperature
sensing over a −55°C to +150°C temperature
range. The low impedance and linear output make interfacing
to readout or control circuitry especially easy.
The LM135 operates over a −55°C to +150°C temperature
range while the LM235 operates over a −40°C to +125°C
temperature range. The LM335 operates from −40°C to
+100°C. The LM135/LM235/LM335 are available packaged
in hermetic TO-46 transistor packages while the LM335 is
also available in plastic TO-92 packages.
Features
n Directly calibrated in °Kelvin
n 1°C initial accuracy available
n Operates from 400 μA to 5 mA
n Less than 1W dynamic impedance
n Easily calibrated
n Wide operating temperature range
n 200°C overrange
n Low cost
Click here to download LM313 National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
LM113/LM313 Reference Diode download National Semiconductor pdf datasheets
LM113/LM313 Reference Diode
General Description
The LM113/LM313 are temperature compensated, low voltage
reference diodes. They feature extremely-tight regulation
over a wide range of operating currents in addition to an
unusually-low breakdown voltage and good temperature
stability.
The diodes are synthesized using transistors and resistors
in a monolithic integrated circuit. As such, they have the
same low noise and long term stability as modern IC op
amps. Further, output voltage of the reference depends only
on highly-predictable properties of components in the IC; so
they can be manufactured and supplied to tight tolerances.
Features
Y Low breakdown voltage: 1.220V
Click here to download LM313 National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
General Description
The LM113/LM313 are temperature compensated, low voltage
reference diodes. They feature extremely-tight regulation
over a wide range of operating currents in addition to an
unusually-low breakdown voltage and good temperature
stability.
The diodes are synthesized using transistors and resistors
in a monolithic integrated circuit. As such, they have the
same low noise and long term stability as modern IC op
amps. Further, output voltage of the reference depends only
on highly-predictable properties of components in the IC; so
they can be manufactured and supplied to tight tolerances.
Features
Y Low breakdown voltage: 1.220V
Click here to download LM313 National Semiconductor pdf datasheets
Datasheets Download-National Semiconductor pdf datasheets download
Tuesday, December 4, 2012
Texas Instruments LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V TI pdf datasheet download
QUAD DIFFERENTIAL COMPARATORS
Check for Samples: LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V
FEATURES
? Wide Supply Ranges � Single Supply: 2 V to 36 V
? Low Input Bias Current: 25 nA (Typ)
? Low Input Offset Current: 3 nA (Typ) (LM139)
? Low Input Offset Voltage: 2 mV (Typ)
? Common-Mode Input Voltage Range Includes
? Differential Input Voltage Range Equal to
? Low Supply-Current Drain Independent of
? Low Output Saturation Voltage
? Output Compatible With TTL, MOS, and CMOS
DESCRIPTION/ORDERING INFORMATION
These devices consist of four independent voltage comparators that are designed to operate from a single power
supply over a wide range of voltages. Operation from dual supplies also is possible, as long as the difference
between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode
voltage. Current drain is independent of the supply voltage. The outputs can be connected to other opencollector
outputs to achieve wired-AND relationships.
The LM139 and LM139A are characterized for operation over the full military temperature range of �55°C to
125°C. The LM239 and LM239A are characterized for operation from �25°C to 125°C. The LM339 and LM339A
are characterized for operation from 0°C to 70°C. The LM2901, LM2901AV, and LM2901V are characterized for
operation from �40°C to 125°C.
Click Here to download Texas Instruments LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V TI pdf datasheet
--------------
DatasheetDoc-Texas Instruments TI pdf datasheet download
Check for Samples: LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V
FEATURES
? Wide Supply Ranges � Single Supply: 2 V to 36 V
? Low Input Bias Current: 25 nA (Typ)
? Low Input Offset Current: 3 nA (Typ) (LM139)
? Low Input Offset Voltage: 2 mV (Typ)
? Common-Mode Input Voltage Range Includes
? Differential Input Voltage Range Equal to
? Low Supply-Current Drain Independent of
? Low Output Saturation Voltage
? Output Compatible With TTL, MOS, and CMOS
DESCRIPTION/ORDERING INFORMATION
These devices consist of four independent voltage comparators that are designed to operate from a single power
supply over a wide range of voltages. Operation from dual supplies also is possible, as long as the difference
between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode
voltage. Current drain is independent of the supply voltage. The outputs can be connected to other opencollector
outputs to achieve wired-AND relationships.
The LM139 and LM139A are characterized for operation over the full military temperature range of �55°C to
125°C. The LM239 and LM239A are characterized for operation from �25°C to 125°C. The LM339 and LM339A
are characterized for operation from 0°C to 70°C. The LM2901, LM2901AV, and LM2901V are characterized for
operation from �40°C to 125°C.
Click Here to download Texas Instruments LM139, LM239, LM339, LM139A, LM239A, LM339A, LM2901, LM2901AV, LM2901V TI pdf datasheet
--------------
DatasheetDoc-Texas Instruments TI pdf datasheet download
Friday, October 5, 2012
LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet download
LMV321 SINGLE, LMV358 DUAL
LMV324 QUAD, LMV324S QUAD WITH SHUTDOWN
LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
1FEATURES
• 2.7-V and 5-V Performance
• –40°C to 125°C Operation
• Low-Power Shutdown Mode (LMV324S)
• No Crossover Distortion
• Low Supply Current
– LMV321 . . . 130 μA Typ
– LMV358 . . . 210 μA Typ
– LMV324 . . . 410 μA Typ
– LMV324S . . . 410 μA Typ
• Rail-to-Rail Output Swing
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/
ORDERING INFORMATION
The LMV321, LMV358, and LMV324/LMV324S are
single, dual, and quad low-voltage (2.7 V to 5.5 V)
operational amplifiers with rail-to-rail output swing.
The LMV324S, which is a variation of the standard
LMV324, includes a power-saving shutdown feature
that reduces supply current to a maximum of 5 μA
per channel when the amplifiers are not needed.
Channels 1 and 2 together are put in shutdown, as
are channels 3 and 4. While in shutdown, the outputs
actively are pulled low.
The LMV321, LMV358, LMV324, and LMV324S are
the most cost-effective solutions for applications
where low-voltage operation, space saving, and low
cost are needed. These amplifiers are designed
specifically for low-voltage (2.7 V to 5 V) operation,
with performance specifications meeting or exceeding
the LM358 and LM324 devices that operate from 5 V
to 30 V. Additional features of the LMV3xx devices
are a common-mode input voltage range that
includes ground, 1-MHz unity-gain bandwidth, and 1-
V/μs slew rate.
The LMV321 is available in the ultra-small DCK (SC-
70) package, which is approximately one-half the size
of the DBV (SOT-23) package. This package saves
space on printed circuit boards and enables the
design of small portable electronic devices. It also
allows the designer to place the device closer to the
signal source to reduce noise pickup and increase
signal integrity.
Click here to download LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LMV324 QUAD, LMV324S QUAD WITH SHUTDOWN
LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
1FEATURES
• 2.7-V and 5-V Performance
• –40°C to 125°C Operation
• Low-Power Shutdown Mode (LMV324S)
• No Crossover Distortion
• Low Supply Current
– LMV321 . . . 130 μA Typ
– LMV358 . . . 210 μA Typ
– LMV324 . . . 410 μA Typ
– LMV324S . . . 410 μA Typ
• Rail-to-Rail Output Swing
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/
ORDERING INFORMATION
The LMV321, LMV358, and LMV324/LMV324S are
single, dual, and quad low-voltage (2.7 V to 5.5 V)
operational amplifiers with rail-to-rail output swing.
The LMV324S, which is a variation of the standard
LMV324, includes a power-saving shutdown feature
that reduces supply current to a maximum of 5 μA
per channel when the amplifiers are not needed.
Channels 1 and 2 together are put in shutdown, as
are channels 3 and 4. While in shutdown, the outputs
actively are pulled low.
The LMV321, LMV358, LMV324, and LMV324S are
the most cost-effective solutions for applications
where low-voltage operation, space saving, and low
cost are needed. These amplifiers are designed
specifically for low-voltage (2.7 V to 5 V) operation,
with performance specifications meeting or exceeding
the LM358 and LM324 devices that operate from 5 V
to 30 V. Additional features of the LMV3xx devices
are a common-mode input voltage range that
includes ground, 1-MHz unity-gain bandwidth, and 1-
V/μs slew rate.
The LMV321 is available in the ultra-small DCK (SC-
70) package, which is approximately one-half the size
of the DBV (SOT-23) package. This package saves
space on printed circuit boards and enables the
design of small portable electronic devices. It also
allows the designer to place the device closer to the
signal source to reduce noise pickup and increase
signal integrity.
Click here to download LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LM3875 Texas Instruments TI pdf datasheet download
LM3875
Overture™ Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General Description
The LM3875 is a high-performance audio power amplifier
capable of delivering 56W of continuous average power to
an 8Ω load with 0.1% THD+N from 20Hz to 20kHz.
The performance of the LM3875, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Operating
Area (SOA). SPiKe protection means that these
parts are completely safeguarded at the output against overvoltage,
undervoltage, overloads, caused by shorts to the
supplies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintains an excellent signal-to-noise ratio of
greater than 95dB(min) with a typical low noise floor of
2.0μV. It exhibits extremely low THD+N values of 0.06% at
the rated output into the rated load over the audio spectrum,
and provides excellent linearity with an IMD (SMPTE) typical
rating of 0.004%.
Features
n 56W continuous average output power into 8Ω
n 100W instantaneous peak output power capability
n Signal-to-Noise Ratio >95dB (min)
n Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n Output over-voltage protection against transients from
inductive loads
n Supply under-voltage protection, not allowing internal
biasing to occur when |V+| + |V−| ≤ 12V, thus eliminating
turn-on and turn-off transients
n 11 lead TO-220 package
n Wide supply voltage range: |V+| + |V−| = 20V to 84V
Applications
n Component or compact stereos
n Self-powered speakers
n Surround-sound amplifiers
n High-end stereo TVs
Click here to download LM3875 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Overture™ Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General Description
The LM3875 is a high-performance audio power amplifier
capable of delivering 56W of continuous average power to
an 8Ω load with 0.1% THD+N from 20Hz to 20kHz.
The performance of the LM3875, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Operating
Area (SOA). SPiKe protection means that these
parts are completely safeguarded at the output against overvoltage,
undervoltage, overloads, caused by shorts to the
supplies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintains an excellent signal-to-noise ratio of
greater than 95dB(min) with a typical low noise floor of
2.0μV. It exhibits extremely low THD+N values of 0.06% at
the rated output into the rated load over the audio spectrum,
and provides excellent linearity with an IMD (SMPTE) typical
rating of 0.004%.
Features
n 56W continuous average output power into 8Ω
n 100W instantaneous peak output power capability
n Signal-to-Noise Ratio >95dB (min)
n Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n Output over-voltage protection against transients from
inductive loads
n Supply under-voltage protection, not allowing internal
biasing to occur when |V+| + |V−| ≤ 12V, thus eliminating
turn-on and turn-off transients
n 11 lead TO-220 package
n Wide supply voltage range: |V+| + |V−| = 20V to 84V
Applications
n Component or compact stereos
n Self-powered speakers
n Surround-sound amplifiers
n High-end stereo TVs
Click here to download LM3875 Texas Instruments TI pdf datasheet
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LM1117/LM1117I Texas Instruments TI pdf datasheet download
LM1117/LM1117I
800mA Low-Dropout Linear Regulator
General Description
The LM1117 is a series of low dropout voltage regulators with
a dropout of 1.2V at 800mA of load current. It has the same
pin-out as National Semiconductor's industry standard
LM317.
The LM1117 is available in an adjustable version, which can
set the output voltage from 1.25V to 13.8V with only two external
resistors. In addition, it is also available in five fixed
voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit includes a zener trimmed bandgap reference to assure
output voltage accuracy to within ±1%.
The LM1117 series is available in LLP, TO-263, SOT-223,
TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the
transient response and stability.
Features
● Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
Versions
● Space Saving SOT-223 and LLP Packages
● Current Limiting and Thermal Protection
● Output Current 800mA
● Line Regulation 0.2% (Max)
● Load Regulation 0.4% (Max)
● Temperature Range
— LM1117 0°C to 125°C
— LM1117I −40°C to 125°C
Applications
● 2.85V Model for SCSI-2 Active Termination
● Post Regulator for Switching DC/DC Converter
● High Efficiency Linear Regulators
● Battery Charger
● Battery Powered Instrumentation
Click here to download LM1117/LM1117I Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
800mA Low-Dropout Linear Regulator
General Description
The LM1117 is a series of low dropout voltage regulators with
a dropout of 1.2V at 800mA of load current. It has the same
pin-out as National Semiconductor's industry standard
LM317.
The LM1117 is available in an adjustable version, which can
set the output voltage from 1.25V to 13.8V with only two external
resistors. In addition, it is also available in five fixed
voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit includes a zener trimmed bandgap reference to assure
output voltage accuracy to within ±1%.
The LM1117 series is available in LLP, TO-263, SOT-223,
TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the
transient response and stability.
Features
● Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
Versions
● Space Saving SOT-223 and LLP Packages
● Current Limiting and Thermal Protection
● Output Current 800mA
● Line Regulation 0.2% (Max)
● Load Regulation 0.4% (Max)
● Temperature Range
— LM1117 0°C to 125°C
— LM1117I −40°C to 125°C
Applications
● 2.85V Model for SCSI-2 Active Termination
● Post Regulator for Switching DC/DC Converter
● High Efficiency Linear Regulators
● Battery Charger
● Battery Powered Instrumentation
Click here to download LM1117/LM1117I Texas Instruments TI pdf datasheet
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L293, L293D Texas Instruments TI pdf datasheet download
L293, L293D
QUADRUPLE HALF-H DRIVERS
Featuring Unitrode L293 and L293D
Products Now From Texas Instruments
Wide Supply-Voltage Range: 4.5 V to 36 V
Separate Input-Logic Supply
Internal ESD Protection
Thermal Shutdown
High-Noise-Immunity Inputs
Functionally Similar to SGS L293 and
SGS L293D
Output Current 1 A Per Channel
(600 mA for L293D)
Peak Output Current 2 A Per Channel
(1.2 A for L293D)
Output Clamp Diodes for Inductive
Transient Suppression (L293D)
description/ordering information
The L293 and L293D are quadruple high-current
half-H drivers. The L293 is designed to provide
bidirectional drive currents of up to 1 A at voltages
from 4.5 V to 36 V. The L293D is designed to
provide bidirectional drive currents of up to
600-mA at voltages from 4.5 V to 36 V. Both
devices are designed to drive inductive loads such
as relays, solenoids, dc and bipolar stepping
motors, as well as other high-current/high-voltage
loads in positive-supply applications.
All inputs are TTL compatible. Each output is a
complete totem-pole drive circuit, with a
Darlington transistor sink and a pseudo-
Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4
enabled by 3,4EN. When an enable input is high, the associated drivers are enabled, and their outputs are active
and in phase with their inputs. When the enable input is low, those drivers are disabled, and their outputs are
off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge)
reversible drive suitable for solenoid or motor applications.
Click here to download L293, L293D Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
QUADRUPLE HALF-H DRIVERS
Featuring Unitrode L293 and L293D
Products Now From Texas Instruments
Wide Supply-Voltage Range: 4.5 V to 36 V
Separate Input-Logic Supply
Internal ESD Protection
Thermal Shutdown
High-Noise-Immunity Inputs
Functionally Similar to SGS L293 and
SGS L293D
Output Current 1 A Per Channel
(600 mA for L293D)
Peak Output Current 2 A Per Channel
(1.2 A for L293D)
Output Clamp Diodes for Inductive
Transient Suppression (L293D)
description/ordering information
The L293 and L293D are quadruple high-current
half-H drivers. The L293 is designed to provide
bidirectional drive currents of up to 1 A at voltages
from 4.5 V to 36 V. The L293D is designed to
provide bidirectional drive currents of up to
600-mA at voltages from 4.5 V to 36 V. Both
devices are designed to drive inductive loads such
as relays, solenoids, dc and bipolar stepping
motors, as well as other high-current/high-voltage
loads in positive-supply applications.
All inputs are TTL compatible. Each output is a
complete totem-pole drive circuit, with a
Darlington transistor sink and a pseudo-
Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4
enabled by 3,4EN. When an enable input is high, the associated drivers are enabled, and their outputs are active
and in phase with their inputs. When the enable input is low, those drivers are disabled, and their outputs are
off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge)
reversible drive suitable for solenoid or motor applications.
Click here to download L293, L293D Texas Instruments TI pdf datasheet
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Saturday, September 22, 2012
LM6132,LM6134 Texas Instruments TI pdf datasheet download
LM6132,LM6134
Dual and Quad Low Power 10 MHz Rail-to-Rail I/O
Operational Amplifiers
General Description
The LM6132/34 provides new levels of speed vs. power
performance in applications where low voltage supplies or
power limitations previously made compromise necessary.
With only 360 μA/amp supply current, the 10 MHz gainbandwidth
of this device supports new portable applications
where higher power devices unacceptably drain battery life.
The LM6132/34 can be driven by voltages that exceed both
power supply rails, thus eliminating concerns over exceeding
the common-mode voltage range. The rail-to-rail output
swing capability provides the maximum possible dynamic
range at the output. This is particularly important when operating
on low supply voltages. The LM6132/34 can also
drive large capacitive loads without oscillating.
Operating on supplies from 2.7V to over 24V, the LM6132/34
is excellent for a very wide range of applications, from battery
operated systems with large bandwidth requirements to
high speed instrumentation.
Features
(For 5V Supply, Typ Unless Noted)
n Rail-to-Rail input CMVR −0.25V to 5.25V
n Rail-to-Rail output swing 0.01V to 4.99V
n High gain-bandwidth, 10 MHz at 20 kHz
n Slew rate 12 V/μs
n Low supply current 360 μA/Amp
n Wide supply range 2.7V to over 24V
n CMRR 100 dB
n Gain 100 dB with RL = 10k
n PSRR 82 dB
Applications
n Battery operated instrumentation
n Instrumentation Amplifiers
n Portable scanners
n Wireless communications
n Flat panel display driver
Click here to download LM6132,LM6134 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Dual and Quad Low Power 10 MHz Rail-to-Rail I/O
Operational Amplifiers
General Description
The LM6132/34 provides new levels of speed vs. power
performance in applications where low voltage supplies or
power limitations previously made compromise necessary.
With only 360 μA/amp supply current, the 10 MHz gainbandwidth
of this device supports new portable applications
where higher power devices unacceptably drain battery life.
The LM6132/34 can be driven by voltages that exceed both
power supply rails, thus eliminating concerns over exceeding
the common-mode voltage range. The rail-to-rail output
swing capability provides the maximum possible dynamic
range at the output. This is particularly important when operating
on low supply voltages. The LM6132/34 can also
drive large capacitive loads without oscillating.
Operating on supplies from 2.7V to over 24V, the LM6132/34
is excellent for a very wide range of applications, from battery
operated systems with large bandwidth requirements to
high speed instrumentation.
Features
(For 5V Supply, Typ Unless Noted)
n Rail-to-Rail input CMVR −0.25V to 5.25V
n Rail-to-Rail output swing 0.01V to 4.99V
n High gain-bandwidth, 10 MHz at 20 kHz
n Slew rate 12 V/μs
n Low supply current 360 μA/Amp
n Wide supply range 2.7V to over 24V
n CMRR 100 dB
n Gain 100 dB with RL = 10k
n PSRR 82 dB
Applications
n Battery operated instrumentation
n Instrumentation Amplifiers
n Portable scanners
n Wireless communications
n Flat panel display driver
Click here to download LM6132,LM6134 Texas Instruments TI pdf datasheet
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LM2676 Texas Instruments TI pdf datasheet download
LM2676
June 29, 2012
SIMPLE SWITCHER®® High Efficiency 3A Step-Down
Voltage Regulator
General Description
The LM2676 series of regulators are monolithic integrated
circuits which provide all of the active functions for a stepdown
(buck) switching regulator capable of driving up to 3A
loads with excellent line and load regulation characteristics.
High efficiency (>90%) is obtained through the use of a low
ON-resistance DMOS power switch. The series consists of
fixed output voltages of 3.3V, 5V and 12V and an adjustable
output version.
The SIMPLE SWITCHER concept provides for a complete
design using a minimum number of external components. A
high fixed frequency oscillator (260KHz) allows the use of
physically smaller sized components. A family of standard inductors
for use with the LM2676 are available from several
manufacturers to greatly simplify the design process.
The LM2676 series also has built in thermal shutdown, current
limiting and an ON/OFF control input that can power
down the regulator to a low 50μA quiescent current standby
condition. The output voltage is guaranteed to a ±2% tolerance.
The clock frequency is controlled to within a ±11%
tolerance.
Features
■ Efficiency up to 94%
■ Simple and easy to design with (using off-the-shelf
external components)
■ 150 mΩ DMOS output switch
■ 3.3V, 5V and 12V fixed output and adjustable (1.2V to
37V ) versions
■ 50μA standby current when switched OFF
■ ±2%maximum output tolerance over full line and load
conditions
■ Wide input voltage range: 8V to 40V
■ 260 KHz fixed frequency internal oscillator
■ −40 to +125°C operating junction temperature range
Applications
■ Simple to design, high efficiency (>90%) step-down
switching regulators
■ Efficient system pre-regulator for linear voltage regulators
■ Battery chargers
Click here to download LM2676 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
June 29, 2012
SIMPLE SWITCHER®® High Efficiency 3A Step-Down
Voltage Regulator
General Description
The LM2676 series of regulators are monolithic integrated
circuits which provide all of the active functions for a stepdown
(buck) switching regulator capable of driving up to 3A
loads with excellent line and load regulation characteristics.
High efficiency (>90%) is obtained through the use of a low
ON-resistance DMOS power switch. The series consists of
fixed output voltages of 3.3V, 5V and 12V and an adjustable
output version.
The SIMPLE SWITCHER concept provides for a complete
design using a minimum number of external components. A
high fixed frequency oscillator (260KHz) allows the use of
physically smaller sized components. A family of standard inductors
for use with the LM2676 are available from several
manufacturers to greatly simplify the design process.
The LM2676 series also has built in thermal shutdown, current
limiting and an ON/OFF control input that can power
down the regulator to a low 50μA quiescent current standby
condition. The output voltage is guaranteed to a ±2% tolerance.
The clock frequency is controlled to within a ±11%
tolerance.
Features
■ Efficiency up to 94%
■ Simple and easy to design with (using off-the-shelf
external components)
■ 150 mΩ DMOS output switch
■ 3.3V, 5V and 12V fixed output and adjustable (1.2V to
37V ) versions
■ 50μA standby current when switched OFF
■ ±2%maximum output tolerance over full line and load
conditions
■ Wide input voltage range: 8V to 40V
■ 260 KHz fixed frequency internal oscillator
■ −40 to +125°C operating junction temperature range
Applications
■ Simple to design, high efficiency (>90%) step-down
switching regulators
■ Efficient system pre-regulator for linear voltage regulators
■ Battery chargers
Click here to download LM2676 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LM158,LM258,LM2904,LM358 Texas Instruments TI pdf datasheet download
LM158,LM258,LM2904,LM358
Low Power Dual Operational Amplifiers
General Description
The LM158 series consists of two independent, high gain,
internally frequency compensated operational amplifiers
which were designed specifically to operate from a single
power supply over a wide range of voltages. Operation from
split power supplies is also possible and the low power
supply current drain is independent of the magnitude of the
power supply voltage.
Application areas include transducer amplifiers, dc gain
blocks and all the conventional op amp circuits which now
can be more easily implemented in single power supply
systems. For example, the LM158 series can be directly
operated off of the standard +5V power supply voltage which
is used in digital systems and will easily provide the required
interface electronics without requiring the additional ±15V
power supplies.
The LM358 and LM2904 are available in a chip sized package
(8-Bump micro SMD) using National’s micro SMD package
technology.
Unique Characteristics
n In the linear mode the input common-mode voltage
range includes ground and the output voltage can also
swing to ground, even though operated from only a
single power supply voltage.
n The unity gain cross frequency is temperature
compensated.
n The input bias current is also temperature compensated.
Advantages
n Two internally compensated op amps
n Eliminates need for dual supplies
n Allows direct sensing near GND and VOUT also goes to
GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Features
n Available in 8-Bump micro SMD chip sized package,
(See AN-1112)
n Internally frequency compensated for unity gain
n Large dc voltage gain: 100 dB
n Wide bandwidth (unity gain): 1 MHz
(temperature compensated)
n Wide power supply range:
— Single supply: 3V to 32V
— or dual supplies: ±1.5V to ±16V
n Very low supply current drain (500 μA)—essentially
independent of supply voltage
n Low input offset voltage: 2 mV
n Input common-mode voltage range includes ground
n Differential input voltage range equal to the power
supply voltage
n Large output voltage swing
Click here to download LM158,LM258,LM2904,LM358 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Low Power Dual Operational Amplifiers
General Description
The LM158 series consists of two independent, high gain,
internally frequency compensated operational amplifiers
which were designed specifically to operate from a single
power supply over a wide range of voltages. Operation from
split power supplies is also possible and the low power
supply current drain is independent of the magnitude of the
power supply voltage.
Application areas include transducer amplifiers, dc gain
blocks and all the conventional op amp circuits which now
can be more easily implemented in single power supply
systems. For example, the LM158 series can be directly
operated off of the standard +5V power supply voltage which
is used in digital systems and will easily provide the required
interface electronics without requiring the additional ±15V
power supplies.
The LM358 and LM2904 are available in a chip sized package
(8-Bump micro SMD) using National’s micro SMD package
technology.
Unique Characteristics
n In the linear mode the input common-mode voltage
range includes ground and the output voltage can also
swing to ground, even though operated from only a
single power supply voltage.
n The unity gain cross frequency is temperature
compensated.
n The input bias current is also temperature compensated.
Advantages
n Two internally compensated op amps
n Eliminates need for dual supplies
n Allows direct sensing near GND and VOUT also goes to
GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Features
n Available in 8-Bump micro SMD chip sized package,
(See AN-1112)
n Internally frequency compensated for unity gain
n Large dc voltage gain: 100 dB
n Wide bandwidth (unity gain): 1 MHz
(temperature compensated)
n Wide power supply range:
— Single supply: 3V to 32V
— or dual supplies: ±1.5V to ±16V
n Very low supply current drain (500 μA)—essentially
independent of supply voltage
n Low input offset voltage: 2 mV
n Input common-mode voltage range includes ground
n Differential input voltage range equal to the power
supply voltage
n Large output voltage swing
Click here to download LM158,LM258,LM2904,LM358 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
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