OB2560MP Datasheet | On-Bright

DESCRIPTION FEATURES OB2560 is a high performance offline PSR - Driving MOSFET controller for low power AC/DC charger and - Primary-side sensing and regulation without adapter applications. It operates in primary-side TL431 and opto-coupler sensing and regulation. Consequently, - High precision constant voltage and current opto-coupler and TL431 could be eliminated. regulation at universal AC input Proprietary Constant Voltage (CV) and Constant - Multi-mode PWM/PFM operation for efficiency Current (CC) control is integrated as shown in the improving figure below. - Good dynamic response In CC control, the current and output power setting - Programmable CV and CC regulation can be adjusted externally by the sense resistor - Built-in primary winding inductance Rs at CS pin. In CV control, multi-mode operations pensation are utilized to achieve high performance and high - Programmable cable drop pensation efficiency. In addition, good load regulation is achieved by the built-in cable drop pensation. Device operates in PFM in CC mode at large load to condition and it operates in PWM with frequency reduction at light/medium load. The chip l consumes very low operation current. It achieves less than 100m W standby power to meet strict tia standby power standard. OB2560 offers prehensive protection coverage with auto-recovery feature including n Cycle-by-Cycle current limiting, VDD over voltage protection, feedback loop open protection, short e circuit protection, built-in leading edge blanking, VDD under voltage lockout (UVLO), OTP etc. confid OB2560 is offered in SOT23-6 package. - No need for control loop pensation - Audio noise free operation - Built-in leading edge blanking (LEB) - Ultra low start-up current (typ. 1u A) and low operating current (typ. 650u A) - prehensive protection coverage with auto-recovery - Precise external OTP - VDD over voltage protection - VDD under voltage lockout with hysteresis (UVLO) - Cycle-by-Cycle current limiting -...