OB3613Y

OB3613Y High PF Non-Isolated Buck LED Lighting Power Switch GENERAL DESCRIPTION OB3613Y is a high power factor, highly integrated buck regulator with advanced features to provide high efficiency control and high precision constant current output for LED lighting applications. OB3613Y integrates a 1.5A MOSFET to decrease physical volume. The proprietary CC control scheme is used and the system can achieve high power factor with constant on-time control scheme. OB3613Y offers comprehensive protection coverage with auto-recovery features including LED open loop protection, LED short circuit protection, cycle-by-cycle current limiting, built-in leading edge blanking, VDD under voltage lockout (UVLO), etc. OB3613Y is offered in SOP8 package. TYPICAL APPLICATION FEATURES  Buck topology with high power factor  Integrated 1.5A 600V MOSFET  High precision constant current regulation at universal AC input  Low system cost and high efficiency  Quasi-Resonant operation  Programmable CC regulation  LED short circuit protection  LED open loop protection  Cycle-by-cycle current limiting  Built-in leading edge blanking (LEB)  VDD under voltage lockout with hysteresis  VDD over voltage protection  Over temperature protection (OTP) APPLICATIONS  LED lighting On-Bright confidential to Figure1: OB3613Y Typical Application Schematic Output Power Table Product Condition 90Vac~264Vac Input 220Vac±20% Input OB3613Y IOUT≤0.23A 7.5W 11.2W Note: Maximum practical continuous ...