FT838NB

Fremontmicro USA Use Only Fremont Micro Devices FT838NB/FT838RNA Low-Power 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  No audible noise over entire operating range  Built-in power NPN  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  Open Circuit Protection TYPICAL APPLICATION  Adapter/Charger for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus  Standby and Auxiliary Power Supplies Set Top Boxes (STB)  AC/DC LED Driver applications DESCRIPTION The FT838NB/FT838RNA controller device is optimized for high-performance, low power switching mode power supply applications. The FT838NB/FT838RNA facilitates CC/CV charger design by eliminating an ...