FT839D数据手册FMD中文资料规格书

描述 Description

The FT839Dx controller device is optimized for high-performance, low power switching mode power supply applications. The FT839Dx facilitates CC/CV charger design by eliminating an opto-coupler and TL431. Its highly integrated functions such as Under Voltage Lockout (UVLO), Leading Edge Blanking (LEB) and built-in cable compensation offer the users a high efficiency and low cost solution for AC/DC power applications. 
 
Power supplies built with FT839Dx can achieve both highest average efficiency and fast dynamic load response.

特性 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
   Applications from 1W to more than 18W output
   Direct drive of BJT or MOS switch
   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

应用 Application

Ø   Adapter/Charger for Cell/Cordless Phones,PDAs, MP3 and Other Portable Apparatus
Ø   Standby and Auxiliary Power SuppliesSet Top Boxes (STB)
Ø   AC/DC LED Driver applications