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OB2560
High Precision CC/CV Primary-Side Controller
GENERAL 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.