FEATURES

 Low Cost Solution Built-in 800V power BJT

 Quasi-Resonant Primary Side Regulation

(QR-PSR) Control with High Efficiency

 Multi-Mode PSR Control

 Fast Dynamic Response

 Built-in Dynamic Base Drive

 Audio Noise Free Operation

 ±4 CC and CV Regulation

 Low Standby Power <70mW

 Programmable Cable Drop Compensation

(CDC) in CV Mode

 Built-in AC Line & Load CC Compensation

 Build in Protections:

 Short Load Protection (SLP)

 Cycle-by-Cycle Current Limiting

 Leading Edge Blanking (LEB)

 Pin Floating Protection

 VDD OVP & UVP & Clamp

 Over temperature protection(OTP)

 Available with DP2525F Versions in SOP-7

Package

APPLICATIONS

 Battery Chargers for Cellular Phones

 AC/DC Power Adapter and LED Lightings

GENERAL DESCRIPTION

DP2525F is a high performance Quasi Resonant

(QR) Primary Side Regulation (PSR) PWM power

switch with high precision CV/CC control ideal for

charger applications.

In CV mode, DP2525F adopts Multi Mode QR

Control which uses the hybrid of AM (Amplitude

Modulation) mode and (Frequency Modulation)

FM mode to improve system efficiency and

reliability. In CC mode, the IC uses PFM control

with line and load CC compensation. The IC can

achieve fast dynamic response. The built-in Cable

Drop Compensation (CDC) function can provide

excellent CV performance.

DP2525F integrates functions and protections of

Under Voltage Lockout (UVLO), VDD over Voltage

Protection (VDD OVP), Cycle-by-cycle Current

Limiting (OCP), Short Load Protection (SLP), On-

Chip Thermal Shutdown, VDD Clamping, etc.