RT8474 Datasheet

RT8474 High Voltage Multiple-Topology LED Driver

The RT8474 is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V and output voltage up to 50V. With 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 sens.

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 Inrush Current
 Under-Voltage Lockout
 Thermal Shutdown
 RoHS Compliant and Halogen Free Applications
 Desk Lights and Room Lighting
 Industrial Display Backlight Marking Information RT8474 GSPYMDNN RT8474GSP : Product Number YMDNN : Date Code Pin Configurations (TOP VIEW) VCC ISP ISN NC 8 27 GND 36 9 45 CREG SW C.