Description
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.
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 Dimming Resolution 256/128
Steps.
- I2C Programmable 256 Steps Linear Current
Regulation.
- Up to 85% Efficiency with Small Magnetics.
- Programmable 16V/25.5V OVP.
- Current Accuracy ±5% and.
RT4501A Datasheet
