DP DP9127V
DP9127V is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current (CC) control for LED lighting applications. The IC also integrates high voltage startup/IC supply circuit and a novel transformer demagnetization circuitFEATURES
● 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 CIRCUITGENERAL DESCRIPTION
DP9127V combines a 500V power MOSFET switch with a power controller in one chip.