OB2550 Datasheet





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OB2550 Datasheet - High Precision CC/CV Primary-Side Controller

OB2550   OB2550  

Datasheet: OB2550 datasheet

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Description: OB2550 High Precision CC/CV Primary-Side Controller GENERAL DESCRIPTION OB2550 is a high performance offline PSR cont roller for low power AC/DC charger and adapter applications. It operates in pr imary-side sensing and regulation. Cons equently, opto-coupler and TL431 could be eliminated. Proprietary Constant Vol tage (CV) and Constant Current (CC) con trol is integrated as shown in the figu re below. In CC control, the current an d output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi-mode opera tions are utilized to achieve high perf ormance and high efficiency. In additio n, good load regulation is achieved by the built-in cable drop compensation


Manufacture Part Number Description

On-Bright Electronics

OB2550

High Precision CC/CV Primary-Side Controller




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