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LM3431 - 3-Channel Constant Current LED Driver

Description

The LM3431 is a 3-channel linear current controller combined with a boost switching controller ideal for driving LED backlight panels in space critical applications.

The LM3431 drives 3 external NPN transistors or MOSFETs to deliver high accuracy constant current to 3 LED strings.

Features

  • 1.
  • 2 LM3431Q/LM3431AQ are Automotive Grade Products that are AEC-Q100 Grade 1 Qualified (.
  • 40°C to 125°C operating junction temperature).
  • 3-Channel Programmable LED Current.
  • High Accuracy Linear Current Regulation.
  • Analog and Digital PWM Dimming Control.
  • Up to 25kHz Dimming Frequency.
  • >100:1 Contrast Ratio.
  • Integrated Boost Controller.
  • 5V-36V Input Voltage Range.
  • Adjustable Switching Frequency up to 1MHz.

📥 Download Datasheet

📁 Similar Datasheet

  • LM3431 - 3-Channel Constant Current LED Driver (National Semiconductor)
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Other Datasheets by Texas Instruments
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  • LM3432B - 6-Channel Current Regulator
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  • LM3434 - Common Anode Capable High Brightness LED Driver
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