KP1051
KP1051 is Non-isolated Quasi-Resonant Buck LED Power Switch manufactured by Kiwi.
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
- On-Chip Thermal Fold-back (OTP)
- Cycle-by-Cycle Current Limiting
- Leading Edge Blanking (LEB)
- Pin Floating Protection
- VDD UVLO
- Available with SOT-223,SOP-8,TO-92 and SOT23-3L Package
APPLICATIONS
- LED Lighting
TYPICAL APPLICATION CIRCUIT
GENERAL DESCRIPTION
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...
