FT8260 Datasheet | FMD

Fremont Micro Devices Preliminary FT8260/1/2x PSR Single-Stage AC-DC LED Driver with High PF Features Primary side control without secondary feedback circuit Single-stage active PFC for high power factor and low THD High current accuracy ±3% No Dimming (FT8260/2x) Three-level ON/Off Dimming (FT8261x) Ultra-low start up current Cycle-by-cycle current limit Over-voltage protection Short-circuit protection Over temperature protection Under voltage lockout protection APPLICATIONS AC/DC LED driver applications Signal and decorative LED light E14/E27/PAR30/PAR38/GU10 LED lamp T8/T10 LED String DESCRIPTION The FT8260/1/2x is a single stage primary-side-control offline LED controller with high power factor, low THD and excellent current accuracy for isolated LED lighting applications. The accurate current control from the primary side significantly simplifies the LED lighting system design by eliminating the secondary side feedback ponents and the opto-coupler. The extremely low start-up current and quiescent current of FT8260/1/2x reduce the power consumption, resulting in excellent efficiency. The multi-protection function of the FT8260/1/2x greatly enhances the system reliability and safety. The FT8260/1/2x Features fruitful protection functions such as over-voltage protection, short-circuit protection, cycle-by-cycle current limit, over-temperature protection, VCC UVLO protection. © 2014 Fremont Micro Devices Inc. Confidential Rev0.86 DS8260/1x-A0-page1 Fremont Micro Devices TYPICAL APPLICATION CIRCUIT Preliminary FT8260/1/2x F1 VAC 85V— 265V EM I B1 C1 R1 R sn D sn C sn Np Df Ns C o1 C o2 Ra Da R2...