OB2212 Datasheet





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OB2212 Datasheet - Primary-Side Regulation PWM Power Switch

OB2212   OB2212  

Datasheet: OB2212 datasheet

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Description: OB2211/OB2212 Primary-Side Regulation PW M Power Switch GENERAL DESCRIPTION OB22 11/OB2212 is an offline PWM Power switc h for low power AC/DC charger and adapt or applications. It operates in primary -side sensing and regulation. Consequen tly, opto-coupler and TL431 could be el iminated from design. Proprietary Const ant Voltage (CV) and Constant Current ( CC) control is integrated as shown in t he figure below. In CC control, the cur rent and output power setting can be ad justed externally by the sense resistor Rs at CS pin. In CV control, multi-mod e operations are utilized to achieve hi gh performance and high efficiency. Dev ice operates in fixed frequency mode at large load conditions, frequency re


Manufacture Part Number Description

On-Bright

OB2212

Primary-Side Regulation PWM Power Switch




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