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Power Circuits / Switching Regulator or Controllers / LM3431MHX/NOPB
Datasheets
LM3431MHX/NOPB by:
Texas Instruments
National Semiconductor Corporation
Texas Instruments
Not Found

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

Part Details for LM3431MHX/NOPB by Texas Instruments

Results Overview of LM3431MHX/NOPB by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

LM3431MHX/NOPB Information

LM3431MHX/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

Price & Stock for LM3431MHX/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM3431MHX/NOPBTR-ND
DigiKey IC LED DRIVER CTRLR PWM 28HTSSOP Min Qty: 2500 Lead time: 6 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 2,500 $2.1269
$2.1269 Buy Now
DISTI # 926-LM3431MHX/NOPB
Mouser Electronics LED Lighting Driver ICs 3-channel constant c urrent LED driver wi A 926-LM3431MH/NOPB RoHS: Compliant 0
  • 2,500 $2.1000
$2.1000 Order Now
DISTI # 86280595
Verical LED Driver 20 Segment 28-Pin HTSSOP EP T/R RoHS: Compliant Min Qty: 148 Package Multiple: 1 Date Code: 1201 Americas - 12310
  • 148 $2.5500
  • 500 $2.4375
  • 1,000 $2.3000
$2.3000 / $2.5500 Buy Now
Rochester Electronics LM3431 3-Channel Constant Current LED Driver with Integrated Boost Controller RoHS: Compliant Status: Active Min Qty: 1 78987
  • 1 $2.1700
  • 25 $2.1300
  • 100 $2.0400
  • 500 $1.9500
  • 1,000 $1.8400
$1.8400 / $2.1700 Buy Now
Ameya Holding Limited LED Driver IC 3 Output DC DC Controller Step-Up (Boost) Analog, PWM Dimming 28-HTSSOP 31648
RFQ
Win Source Electronics IC LED DRIVER CTRLR DIM 28HTSSOP 4690
  • 17 $2.9791
  • 41 $2.4444
  • 64 $2.3681
  • 88 $2.2917
  • 113 $2.2153
  • 152 $1.9861
$1.9861 / $2.9791 Buy Now

Part Details for LM3431MHX/NOPB

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LM3431MHX/NOPB Part Data Attributes

Parametric Data
LM3431MHX/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM3431MHX/NOPB Texas Instruments 3-channel 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
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
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 Functions 1
Number of Outputs 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

Alternate Parts for LM3431MHX/NOPB

This table gives cross-reference parts and alternative options found for LM3431MHX/NOPB. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM3431MHX/NOPB, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LM3431MH/NOPB National Semiconductor Corporation Check for Price IC 0.7 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO28, LEAD FREE, PLASTIC, TSSOP-28, Switching Regulator or Controller LM3431MHX/NOPB vs LM3431MH/NOPB
LM3431MHX National Semiconductor Corporation Check for Price IC 0.7 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO28, PLASTIC, TSSOP-28, Switching Regulator or Controller LM3431MHX/NOPB vs LM3431MHX
LM3431QMHX Texas Instruments Check for Price SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDSO28, PLASTIC, TSSOP-28 LM3431MHX/NOPB vs LM3431QMHX
LM3431MH Texas Instruments Check for Price 0.7A SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDSO28, PLASTIC, TSSOP-28 LM3431MHX/NOPB vs LM3431MH
LM3431QMHX/NOPB Texas Instruments Check for Price 3-channel automotive constant current LED driver with integrated boost controller 28-HTSSOP -40 to 125 LM3431MHX/NOPB vs LM3431QMHX/NOPB
LM3431MHX Texas Instruments Check for Price 0.7A SWITCHING CONTROLLER, 1100kHz SWITCHING FREQ-MAX, PDSO28, PLASTIC, TSSOP-28 LM3431MHX/NOPB vs LM3431MHX
LT3759HMSE#PBF Analog Devices Inc $5.2004 Wide Input Voltage Range Boost/SEPIC/Inverting Controller LM3431MHX/NOPB vs LT3759HMSE#PBF
LT3759EMSE#TRPBF Analog Devices Inc $4.1379 Wide Input Voltage Range Boost/SEPIC/Inverting Controller LM3431MHX/NOPB vs LT3759EMSE#TRPBF
LT3759IMSE#TRPBF Analog Devices Inc $4.3324 Wide Input Voltage Range Boost/SEPIC/Inverting Controller LM3431MHX/NOPB vs LT3759IMSE#TRPBF

LM3431MHX/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's essential to follow the recommended soft-start and shutdown procedures outlined in the datasheet. This includes using a soft-start capacitor, limiting the input voltage slew rate, and ensuring the enable pin is properly biased.

  • Operating the LM3431 at high ambient temperatures can reduce its reliability and lifespan. It's essential to consider the thermal derating curves provided in the datasheet and ensure proper heat sinking and airflow to maintain a safe junction temperature.

  • Yes, the LM3431 is qualified for automotive and high-reliability applications. However, it's essential to review the device's AEC-Q100 qualification and follow the recommended design and manufacturing guidelines to ensure compliance with industry standards.

  • Texas Instruments provides a troubleshooting guide in the LM3431 application note (SLVAU65) that covers common issues, such as oscillations, instability, and overvoltage protection. It's essential to review this guide and follow the recommended debugging procedures to identify and resolve issues quickly.