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LM3432B - 6-Channel Current Regulator

Download the LM3432B datasheet PDF. This datasheet also covers the LM3432 variant, as both devices belong to the same 6-channel current regulator family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3432-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM3432B 6-Channel Current Regulator National Semiconductor
LM3432 6-Channel Current Regulator National Semiconductor
LM343 High Voltage Operational Amplifier National Semiconductor
LM3430 high voltage low-side N-channel MOSFET controller National Semiconductor
LM3431 3-Channel Constant Current LED Driver National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM3432 6-Channel Current Regulator
LM3430 Boost Controller
LM3431 3-Channel Constant Current LED Driver
LM3433 Common Anode Capable High Brightness LED Driver
LM3434 Common Anode Capable High Brightness LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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