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LM3432B Datasheet 6-channel Current Regulator

Manufacturer: Texas Instruments

Overview: LM3432, LM3432B www.ti.com SNVS498D – APRIL 2007 – REVISED MAY 2013 6-Channel Current Regulator for LED Backlight Application Check for Samples: LM3432,.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM3432/LM3432B are 6-channel high voltage current regulators which provide a simple solution for LED backlight applications.

These devices incorporate six individual current regulator channels to give accurate driving current for each LED string.

The string-to-string tolerance is kept within ±2.0%.

Key Features

  • 1.
  • 2 Dynamic Headroom Control (DHC) Output to Maximize Efficiency when used in Conjunction with Texas Instruments Semiconductor's LM3430 Boost Controller for LED Backlighting.
  • Current Sinking Adjustable up to 40mA in Each String.
  • Fast Current Switching Slew Rate, tr = 60ns Typical.
  • Wide Dimming Ratio, up to 4000:1 with fDIM = 500Hz.
  • High LED Driving Voltage up to 80V.
  • ±2.0% Current Matching Between Strings.
  • Accepts Both Digital and An.

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