WS2580 Datasheet | Winsemi

WS2580 Product Description Features - 100m W no-load power - Lower start-up current - PFM mode - Build-in Leading Edge Blanking - Cycle by cycle over current protection (OCP) - Under voltage lockout - ±5% CC、CV Accuracy - Ultra low standby power (<100m W) Applications Universal switch power supply equipment and offline AC/DC flyback power converter - Adapters/Chargers for Cell phones, PDAs, MP3 and other portable apparatus - LED Driver - Standby and Auxiliary power supplies Low Power Primary Side AC/DC Controller General Description The WS2580 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The WS2580 provides accurate constant voltage and constant current (CC/CV) regulation without requiring the opto-coupler and the secondary control circuitry. It also eliminates the need of loop pensation circuitry while maintaining stability. The WS2580 achieves excellent regulation and high power efficiency, the no-load power consumption is less than 100m W. The WSWS2580 is available in SOT23-6 package. Typical Application Circuit L V+ N V- 1 OUT 2 GND 3 VCC FB 6 5 CPC CS 4 WINSEM I M ICROELECTRONICS WINSEM I M ICROELECTRONICS WINSEM I M ICROELECTRONICS Copyright@Winsemi Microelectronics Co., Ltd., All right reserved. WINSEM I M ICROELECTRONICS...