FT839NDD

FMD Confidential Fremont Micro Devices Preliminary FT839NX/839MX High Efficiency Off-Line CC/CV Switch FEATURES  Constant-Current (CC) and Constant-Voltage (CV) with Primary Side Control  Proprietary technology enabling high efficiency and fast dynamic response  Satisfy DoE Level 6 requirements from 5V/1A to 5V/2.4A applications  No audible noise over entire operating range  Optimization for capacitive loading  Built-in power NPN/MOS  Built-in Cable Compensation  Built-in Line Compensation  Primary-side feedback eliminates opto-coupler and TL431  Cycle-by-Cycle Current Limiting  Over Temperature Protection  VCC Over Voltage Protection  CV Open-loop Protection  Excellent capacitive loading start-up performance TYPICAL APPLICATION  Adapter/Charger for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus  Standby and Auxiliary Power Supplies Set Top Boxes (STB)  Adapter for ADSL / WiFi Wireless  AC/DC LED Driver application...