OB2212 데이터시트 (PDF)

OB2211, OB2212 Primary-Side Regulation PWM Power Switch GENERAL DESCRIPTION OB2211, OB2212 is an offline PWM Power switch for low power AC, DC charger and adaptor applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated from design. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below. In CC control, the current and output power setting can be adjusted externally by the sen