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DP9127

Part Number	DP9127
Manufacturer	DP
Description	Non-isolated Quasi-Resonant Buck LED Power Switch
Published	Jun 22, 2019
Detailed Description	DP9127 Non-isolated Quasi-Resonant Buck LED Power Switch FEATURES  Integrated with 500V MOSFET  No Auxiliary Winding ...
Datasheet	DP9127 PDF File

Overview

DP9127 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 Protection  On-Chip Thermal Fold-back (OTP)  Cycle-by-Cycle Current Limiting  Leading Edge Blanking (LEB)  Pin Floating Protection  VDD UVLO  Available with SOT23-3,SOP-8 and TO-92 Package APPLICATIONS  LED Lighting TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION DP9127 is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications.
DP9127 combines 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 demagnetization circuit, w...

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