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DP9128V - Non-isolated Quasi-Resonant Buck LED Power Switch

General Description

DP9128V is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications.

DP9128V 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 DP9128V
Manufacturer DP
File Size 399.08 KB
Description Non-isolated Quasi-Resonant Buck LED Power Switch
Datasheet download datasheet DP9128V Datasheet

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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.

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DP9128V 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 SOP-8 Package APPLICATIONS  LED Lighting TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION DP9128V is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications.