Power Factor Correction (APFC) quasi-resonant (QR) buck LED driver power switch designed for offline constant-current LED lighting applications. It integrates a 600V power MOSFET and a 650V high-voltage startup circuit, eliminating the need for an external startup resistor while reducing component count and system cost. The device provides high power factor (PF > 0.9), low THD, and high-accuracy constant-current regulation, making it ideal for energy-efficient 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 Driver Power Switch
