RT8474A Datasheet - Richtek

RT8474A, High Voltage Multiple-Topology LED Driver

® RT8474A High Voltage Multiple-Topology LED Driver with Open Detection General .
The RT8474A is a current-mode LED driver supporting wide input voltage range from 4.

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

Applications

* Desk Lights and Room Lighting
* Industrial Display Backlight Marking Information RT8474A GSPYMDNN RT8474AGSP : Product Number YMDNN : Date Code Simplified Application Circuit VIN Analog Dimming or PWM Dimming R5 C1 RT8474A VCC C5 ISP ISN CTL R1 R2 C2 SW VC CREG OVP C3 GND RSE

RT8474A-Richtek.pdf