UR4205C

UR4205C SmartPower Enabled Non-Flickering APFC Controller For LED Lighting Overview: UR4205C is a high-voltage Integrated Circuit(IC) for driving LED lamps in general mains lighting applications. It is a single stage of boost or non-isolated flyback controller with Active Power Factor Correction (APFC) feature. With several unique technologies, the main benefits of this IC include: 1. High power factor, Low THD with Zero LED output current ripple, allow a wide LED power range 2. Single stage of Switching Power topology for small PCB footprint 3. Integrated high voltage SmartPower allows fast startup 4. Single winding inductor for low cost, No bias winding needed 5. Rich protection provides high reliability 6. Low electronic Bill of Material (BOM) The IC works as boundary conduction mode converters, typically in boost or flyback configuration. High-efficiency switch mode boost controller drives an external power FET with Quasi-Resonant operation. The IC can apply to compact mains connec...