Datasheet Summary
High Precision CC/CV Primary-Side PWM Controller
Product Specification
GENERAL DESCRIPTION
Features
OB2531 is a high performance offline PWM
- 5% Constant Voltage Regulation at Universal controller for low power AC/DC charger and
AC input adaptor applications. It operates in primary-side
- High Precision Constant Current Regulation at sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary Constant Voltage (CV) and Constant
士 Current (CC) control is integrated as shown in the figure below. In CC control, the current and output power setting
米 can be adjusted externally by the sense resistor
Rs at CS pin. In CV control, multi-mode...