Power Factor Correction (APFC) Quasi-Resonant (QR) Buck LED Power Switch designed for offline constant-current LED lighting applications. It integrates a high-voltage startup circuit and an internal 600V power MOSFET, eliminating the need for an auxiliary winding and reducing external component count. The device provides high power factor (>0.9), low THD, high efficiency, and high-accuracy constant-current regulation, making it suitable for compact and cost-effective LED driver designs.
Product Group
Integrated Circuit (IC)
Input Voltage
Universal AC Input (85–265VAC)
Power Factor
>0.9
Operating Mode
APFC Quasi-Resonant (QR) Buck Constant-Current LED Power Switch
