OB3332BRCPA-H Overview
Description
OB3332Bx is a TRIAC dimmable high power factor, highly integrated buck/buck-boost regulator with advanced features to provide high efficiency control and high precision constant current output for dimmable LED lighting applications. The proprietary CC control scheme is used to provide features of insensitivity to inductance and line voltage.
Key Features
- Excellent TRIAC dimming performance
- Low system cost and high efficiency
- High PF（PF>0.9）@175~264Vac input
- Support buck/buck-boost topology
- High precision constant current regulation at universal AC input
- Quasi-Resonant operation
- Thermal foldback function for LED output current control
- Insensitivity to inductance and line voltage variation
- LED short circuit protection
- LED open loop protection
