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Power Circuits / Switching Regulator or Controllers / LM3431AQMH/NOPB
Datasheets
LM3431AQMH/NOPB by:
Texas Instruments
Honest Han
National Semiconductor Corporation
Texas Instruments
Not Found

3-channel automotive constant current LED driver with integrated boost controller 28-HTSSOP -40 to 125

Part Details for LM3431AQMH/NOPB by Texas Instruments

Results Overview of LM3431AQMH/NOPB by Texas Instruments

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LM3431AQMH/NOPB Information

LM3431AQMH/NOPB by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
DS96174CN/NOPB Rochester Electronics LLC DS96174 - Line Driver, 4 Func, 4 Driver, BIPolar, PDIP16
LM611IM/NOPB Rochester Electronics LLC LM611IM - Operational Amplifier, 7000uV Offset-Max, BIPolar
LM3431AQMHX/NOPB Texas Instruments 3-Channel Constant Current LED Driver with Integrated Boost Controller 28-HTSSOP -40 to 125

Price & Stock for LM3431AQMH/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM3431AQMH/NOPB-ND
DigiKey IC LED DRIVER CTRLR PWM 28HTSSOP Min Qty: 288 Lead time: 18 Weeks Container: Tube Temporarily Out of Stock
  • 288 $3.0005
$3.0005 Buy Now
DISTI # 926-LM3431AQMH/NOPB
Mouser Electronics LED Lighting Driver ICs 3-channel automotive constant current LE A 926-LM3431AQMHX/NOPB RoHS: Compliant 177
  • 1 $6.6900
  • 10 $4.9100
  • 25 $4.5800
  • 96 $4.0200
  • 288 $3.0000
  • 1,008 $2.9400
  • 2,544 $2.8700
$2.8700 / $6.6900 Buy Now
DISTI # 86279474
Verical LED Driver 20 Segment Automotive AEC-Q100 28-Pin HTSSOP EP Tube RoHS: Compliant Min Qty: 113 Package Multiple: 1 Date Code: 1701 Americas - 4310
  • 113 $3.3375
  • 500 $3.2000
  • 1,000 $3.0125
$3.0125 / $3.3375 Buy Now
DISTI # 86279658
Verical LED Driver 20 Segment Automotive AEC-Q100 28-Pin HTSSOP EP Tube RoHS: Compliant Min Qty: 113 Package Multiple: 1 Date Code: 1601 Americas - 2736
  • 113 $3.3375
  • 500 $3.2000
  • 1,000 $3.0125
$3.0125 / $3.3375 Buy Now
DISTI # 86279169
Verical LED Driver 20 Segment Automotive AEC-Q100 28-Pin HTSSOP EP Tube RoHS: Compliant Min Qty: 113 Package Multiple: 1 Date Code: 1801 Americas - 958
  • 113 $3.3375
  • 500 $3.2000
  • 1,000 $3.0125
$3.0125 / $3.3375 Buy Now
Rochester Electronics LM3431-Q1 3-Channel Constant Current LED Driver with Integrated Boost Controller RoHS: Compliant Status: Active Min Qty: 1 8098
  • 1 $2.8400
  • 25 $2.7800
  • 100 $2.6700
  • 500 $2.5600
  • 1,000 $2.4100
$2.4100 / $2.8400 Buy Now

Part Details for LM3431AQMH/NOPB

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LM3431AQMH/NOPB Part Data Attributes

Parametric Data
LM3431AQMH/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM3431AQMH/NOPB Texas Instruments 3-channel automotive constant current LED driver with integrated boost controller 28-HTSSOP -40 to 125
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Analog IC - Other Type SWITCHING CONTROLLER
Input Voltage-Max 36 V
Input Voltage-Min 4.5 V
JESD-30 Code R-PDSO-G28
JESD-609 Code e3
Moisture Sensitivity Level 1
Number of Channels 3
Number of Terminals 28
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current-Max 0.6 A
Output Voltage-Max 40 V
Output Voltage-Min 5.5 V
Package Body Material PLASTIC/EPOXY
Package Code HTSSOP
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 260
Surface Mount YES
Switcher Configuration BOOST
Switching Frequency-Max 1000 kHz
Temperature Grade AUTOMOTIVE
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30

LM3431AQMH/NOPB Frequently Asked Questions (FAQ)

  • Texas Instruments provides a recommended PCB layout in the LM3431 application note (SLVAU65) that includes thermal vias, copper pours, and component placement guidelines to minimize thermal resistance and ensure optimal performance.

  • To ensure reliable start-up and shutdown, it is recommended to follow the start-up and shutdown sequencing guidelines provided in the datasheet, including the proper timing and voltage sequencing of the input voltage, enable pin, and output voltage.

  • Operating the LM3431 at high ambient temperatures can reduce its reliability and lifespan. It is essential to consider the thermal derating curves provided in the datasheet and ensure that the device is properly heatsinked and cooled to maintain a safe junction temperature.

  • Yes, the LM3431 is qualified for automotive and high-reliability applications. However, it is essential to review the device's AEC-Q100 qualification and PPAP documentation, and to consult with Texas Instruments' technical support team to ensure that the device meets the specific requirements of the application.

  • Texas Instruments provides a troubleshooting guide in the LM3431 application note (SLVAU65) that covers common issues and their solutions, including output voltage instability, overheating, and start-up problems. Additionally, the TI E2E community and technical support team can provide further assistance.