KP1051 Overview
KP1051 is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications. KP1051 bines a 500V power MOSFET switch with a power controller in one chip. The IC also integrates high voltage startup/IC supply circuit and a novel transformer demagnetizat.
KP1051 Key Features
- Integrated with 500V MOSFET
- No Auxiliary Winding Needed
- Quasi-Resonant for High Efficiency
- Built-in Thermal Foldback
- Built-in Charging Circuit for Fast Start-Up
- ±4% CC Regulation
- Very Low VDD Operation Current
- Built-in AC Line CC pensation
- Build in Protections
- LED Short/Open Protection