RS2112 Description
RS2112 is a high performance offline PSR controller for low power AC/DC charger and adapter applications. It operates in primary‐ side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated.
RS2112 Key Features
- ±5% constant voltage regulation at universal AC input
- High precision constant current regulation at universal AC input
- Primary-side sensing and regulation without TL431 and opto-coupler
- Programmable CV and CC regulation
- Built-in primary winding inductance pensation
- Programmable cable drop pensation
- Built-in 700V power BJT
- Ultra low start-up current (Typ. 1μA)
- VDD over voltage protection
- Built-in feedback loop open protection