深圳市中立信电子科技有限公司

HVLED807PF

Offline LED driver with primary-sensing and   high power factor up to 7 W

LED照明驱动器 Off-Line LED 800V 11Ohm 0.9 High Volt

Description

The HVLED807PF is a high-voltage primary switcher intended for operating directly from the rectified mains with minimum external parts and enabling high power factor (> 0.90) to provide an efficient, compact and cost effective solution for LED driving. It combines a high-performance lowvoltage PWM controller chip and an 800 V, avalanche-rugged Power MOSFET, in the same package. There is no need for the optocoupler thanks to the patented primary sensing regulation (PSR) technique. The device assures protection against LED string fault (open or short).

Features HVLED807PF

■ High power factor capability (> 0.9)

■ 800 V, avalanche rugged internal 11 Ω power MOSFET

■ Internal high-voltage startup

■ Primary sensing regulation (PSR)

■ +/- 5% accuracy on constant LED output current

■ Quasi-resonant (QR) operation

■ Optocoupler not needed

■ Open or short LED string management

■ Automatic self supply

Applications HVLED807PF

■ AC-DC LED driver bulb replacement lamps up

to 7 W, with high power factor

■ AC-DC LED drivers up to 7 W