OB3613TJPA

On-Bright confidential to OB3613x Series High PF Non-Isolated Buck LED Lighting Power Switch GENERAL DESCRIPTION OB3613x 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. OB3613x integrates a 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. OB3613x 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. OB3613x is offered in SOP8, SOP7 or DIP8 package. FEATURES  Buck topology with high power factor  Integrated a HV 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 TYPICAL APPLICATION ~ AC OB3613x DRAIN CS DRAIN COMP FB GND VDD Figure1: OB3613x Typical Application Schematic ©On-Bright Electronics Confidential -1- Datasheet OB_DOC_DS_3613XA4 OB3613x Serie...