Description

The HVLED815PF 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

■ High power factor capability (> 0.9)

■ 800 V, avalanche rugged internal 6 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

■ AC-DC LED driver bulb replacement lamps up

to 15 W, with high power factor

■ AC-DC LED drivers up to 15 W

HVLED815PFTR属于集成电路（IC） > LED 驱动器。意法半导体（ST）集团制造生产的HVLED815PFTRLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。