RT8474A Datasheet - Richtek

RT8474A - High Voltage Multiple-Topology LED Driver

The RT8474A is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V in multiple topologies. With the internal 500kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized. High efficiency is achieved by a 100mV current sensi.

RT8474A Features

* High Voltage : VIN Up to 50V, VOUT Up to 50V

* Support Multiple-Topologies (Buck / Boost / Buck- Boost)

* Built-In 2A Power Switch

* Current-Mode PWM Control

* 500kHz Fixed Switching Frequency

* Analog or PWM Control Signal for LED Dimming

* Internal Soft-Start to Avoid

RT8474A-Richtek.pdf