Datasheet4U Logo Datasheet4U.com

KP1051 - Non-isolated Quasi-Resonant Buck LED Power Switch

General Description

KP1051 is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications.

KP1051 combines a 500V power MOSFET switch with a power controller in one chip.

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 Compensation.
  • 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.

📥 Download Datasheet

Datasheet Details

Part number KP1051
Manufacturer Kiwi
File Size 38.18 KB
Description Non-isolated Quasi-Resonant Buck LED Power Switch
Datasheet download datasheet KP1051 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
KP1052A Quasi-resonant LED constant current power switch Kiwi Instruments
KP1052B Quasi-resonant LED constant current power switch Kiwi Instruments
KP1052C Quasi-resonant LED constant current power switch Kiwi Instruments
KP1052D Quasi-resonant LED constant current power switch Kiwi Instruments
KP1054AVPA buck-type constant current drive power switch Kiwi Instruments

Other Datasheets by Kiwi

Part Number Description

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
KP1051 Non-isolated Quasi-Resonant Buck LED Power Switch 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 Compensation  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.