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KP1052D

Product

KP1052D

Description

KP1052D is a highly integrated power switch with Quasi-Resonant Buck (QR-Buck) constant current(CC) control for LED lighting applications.

KP1052D combines a 500V power MOSFET switch with a power controller in one chip. The IC also integrates high voltage LDO supply circuit without VDD Cap and a novel transformer demagnetization  circuit,  which eliminates transformer auxiliary winding. The IC adopts Quasi-Resonant control for high efficiency.

KP1052D integrates functions and protections of Current Limit and Leading Edge Blanking, Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Thermal Foldback (OTP), LED Short Protection, etc.

Features

Integrated with 500V MOSFET

Integrated HV LDO

No VDD Cap and Single Winding Inductor Design

Quasi-Resonant for High Efficiency

±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  SOP-7  and  SOT33-4 Package

Typical Application

Applications

LED Lighting

Datasheet Download