产品简介 :

FT8352x is a high precision primary-side feedback and regulation constant current driver for LED lighting applications. It operates in inductor current discontinuous conduction mode (DCM) and is especially suitable for flyback converter under universal input. Under universal input voltage from 85V to 265V, the system output power is recommended from 3W to 24W respectively of different internal power switch. The FT8352x utilizing DIM pin setup  to achieve PWM dimming;

The FT8352x integrates a 700V power NPN and eliminates secondary sense and feedback circuit. The loop compensation components are also removed while maintaining stability over all operating conditions. It uses a source drive architecture and patent demagnetization sensing technology with very low operating current, Patents of self power supply technology. the auxiliary winding for sensing the output and supplying the chip is therefore eliminated, resulting in low component counts and small system size. 

With its highly accurate current sense method, the FT8352x realizes ±3% accuracy of LED current along with excellent line and load regulation. 

The multi-protection function of FT8352x can greatly enhance the system reliability and safety. The FT8352x features LED open/short circuit protection, CS resistor short circuit protection, over temperature compensation and VCC UVLO protection. The industry leading OVP voltage accuracy ensures the best LED open circuit protection.

产品特点 :

Dimming support

Built-in 700V power NPN 

PSR constant current control without secondary sense and feedback circuit 

Patents of demagnetization sensing and self power-supply technology

Ultra low operating current for high efficiency

Universal input voltage 

±3% LED current accuracy 

Programmable precision OVP voltage for best LED open circuit protection 

LED short circuit protection 

Patent of CS resistor short circuit protection 

VCC under-voltage protection 

Over temperature compensation 

Available in SOP8 and DIP8 packages 


规格书 Part No.: FT8352xx 版本: 0.80 添加时间: 2018-06-04 支持型号: FT8352A、FT8352C、FT8352CD、FT8352DD 附件: ft8352x_ds_rev0.80_en_官网简版.pdf
推广资料 Part No.: 调光方案 版本: 2.0 添加时间: 2018-05-29 支持型号: 隔离(低PF+线性调光)、非隔离(低PF+线性调光) 附件: 开关三段调光 v2.0.pdf