RT8511B Datasheet - Richtek

RT8511B - 43V Asynchronous Boost WLED Driver

The RT8511B is an LED driver IC that can support up to 10 WLED in series. It is composed of a current mode boost converter integrated with a 43V/2.2A power switch running at a fixed 500kHz frequency and covering a wide VIN range from 2.7V to 24V. The white LED current is set with an external resisto.

RT8511B Features

* Wide Input Voltage Range : 2.7V to 24V

* High Output Voltage : up to 43V

* Direct PWM Dimming Control and Frequency from 100Hz to 8kHz

* Internal Soft-Start and Compensation

* 200mV Reference Voltage

* PWM Dimming with Internal Filter

* Programmable Over Voltage Protect

RT8511B-Richtek.pdf