Part RT4532
Description High Efficiency Backlight LED Driver
Manufacturer Richtek
Size 201.51 KB
Richtek
RT4532

Overview

The RT4532 is a high-efficiency LED driver for backlight applications. An asynchronous boost converter with an internal Schottky diode and a current source driver are designed to support 6LED/channel with wide input voltage range from 2.5V to 5.5V.

  • Input Voltage Range : 2.5V to 5.5V
  • Internal Schottky Diode
  • Fast-speed mode I2C Compatible Interface
  • Drive Up to 6 WLEDs in 4 String
  • External PWM Brightness Control
  • 550k/1.1MHz Switching Frequency
  • Built-in Internal Soft-Start
  • I2C Programmable 256 Steps Linear Current Regulation
  • Up to 85% Efficiency with Small Magnetics
  • Programmable 16V/24V OVP