DP1800

DP1800 Quasi-Resonant PSR CC/CV PWM Power Switch 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 DP1800 Versions in SOP-7 Package APPLICATIONS  Battery Chargers for Cellular Phones  AC/DC Power Adapter and LED Lightings GENERAL DESCRIPTION DP1800 is a high performance Quasi Resonant (QR) Primary Side Regulation (PSR) PWM power switch with high precision CV/CC control ideal for charger appl...