Description
OB2571x is an excellent primary side regulation controller with CC/CV operation for medium level power AC/DC charger and adapter applications.
The device integrates an internal power MOSFET and operates in QR mode to provide high efficiency along with several functions of built-in protections.
Features
- Primary-side sensing and regulation operates in QR mode without TL431 and opto-coupler.
- High precision constant voltage and current regulation at universal AC input.
- Programmable CV and CC regulation.
- Integrated power MOSFET.
- Good dynamic response.
- Programmable Brownout Protection and Line
OVP Protection(For 2571Lx only).
- Built-in line compensation for tight CC
regulation.
- Built-in fixed cable compensation.
- Built-in primary winding inductance
compens.
OB2571 Datasheet
