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RT8543 Datasheet 6-string 43v White Led Driver

Manufacturer: Richtek

Overview: ® RT8543 6-String 43V White LED Driver with Boost Regulator General.

Datasheet Details

Part number RT8543
Manufacturer Richtek
File Size 349.26 KB
Description 6-String 43V White LED Driver
Datasheet RT8543-Richtek.pdf

General Description

The RT8543 is a high efficiency white LED driver.

It is designed for LCD panel that employs an LED array as the lighting source.

An integrated switch current mode Boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string.

Key Features

  • Wide Input Voltage : VIN 2.5V to 24V.
  • High Output Voltage : VOUT up to 43V.
  • Current Mode Boost Regulator  600kHz to 1.2MHz Switching Frequency  Up to 85% High Frequency.
  • Adjustable Full Channel Current from 5mA to 50mA and Matched to 2%.
  • Channel Current Regulation with ±3% Accuracy.
  • Dimming Controls  Direct PWM Dimming up to 20kHz and Minimum On-Time to 500ns  PWM to Analog Dimming up to 20kHz with 8 bit resolution.
  • Built-In Soft-Start to Prevent Inrush Cu.

More Datasheets from Richtek

Part Number Description
RT8540A High Power Synchronous Boost Converter
RT8541 Boost DC/DC Converter
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RT8549L 24V/60V Boost Converter
RT8509 Step-Up DC/DC Converter
RT8509A Step-Up DC/DC Converter
RT8510 43V 4-CH LED Driver
RT8511A 43V Asynchronous Boost WLED Driver
RT8511B 43V Asynchronous Boost WLED Driver
RT8525 Boost Controller

RT8543 Distributor