产品简介 :

The FT8391NDDX controller device is optimized for high-performance, low power switching mode power supply applications. The FT8391NDDX 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 FT8391NDDX can achieve both highest average efficiency， fast dynamic load response and super low standby power. FT8391NDDX satisfy DoE Level 6 requirements with production margin from 5V/1A to 5V/2.4A /12V1A applications, respectively.

Furthermore, FT8391NDDX features fruitful protections like Open Circuit Protection and Over Temperature Protection to eliminate the external protection circuits and provide reliable operations. FT8391NDDX is available in DIP8 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

Satisfy DoE Level 6 requirements from 5V/1A to 5V/2.4A /12V1A 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

DIP8 package