RT4501A, RT4501 Datasheet - Richtek Technology

RT4501A - High Efficiency Backlight LED Driver

The RT4501/A 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. An I2C interface can provide easy backlight contr.

RT4501A Features

* Input Voltage Range : 2.5V to 5.5V

* Internal Schottky Diode

* Fast-speed mode I2C Compatible Interface

* Drive Up to 7 WLEDs in 2 String

* External PWM/Pulse Brightness Control

* 550k/1.1MHz Switching Frequency

* Built-in Internal Soft-Start

* PWM Dimming/Pulse Dim

RT4501-RichtekTechnology.pdf