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LM3431AQ Datasheet - National Semiconductor

LM3431AQ 3-Channel Constant Current LED Driver

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. Output current is .

LM3431AQ Features

* LED cathode feedback to minimize regulator headroom and optimize efficiency. A DIM input pin controls LED brightness from analog or digital control signals. Dimming frequencies up to 25 kHz are possible with a contrast ratio of 100:1. Contrast ratios greater than 1000:1 are possible at lower dimming

LM3431AQ Datasheet (621.22 KB)

Preview of LM3431AQ PDF

Datasheet Details

Part number:

LM3431AQ

Manufacturer:

National Semiconductor

File Size:

621.22 KB

Description:

3-channel constant current led driver.

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LM3431AQ 3-Channel Constant Current LED Driver National Semiconductor

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