产品简介 :

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. 

Furthermore, FT839Dx features fruitful protections like Open Circuit Protection and Over Temperature Protection to eliminate the external protection circuits and provide reliable operations. FT839Dx is available in SOT23-5 package. 

产品特点 :

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


规格书 Part No.: FT839x 版本: 0.90 添加时间: 2018-05-24 支持型号: FT839NAx、FT839NBx、FT839NDx、FT839NDDx、FT839Dx 附件:
推广资料 Part No.: FT839/8393 promotion 版本: 2.0 添加时间: 2018-05-29 支持型号: 原边反馈(6级能效) 附件: