50W High Performance LED Filament Lamp Driver with KP1352+GaN FET

The demo board is designed to demonstrate a highperformance 50WLED filament lamp solution with a full input voltage range. The demonstration board is realized through a highly integrated high-frequency direct drive gallium nitride boost boost PFC constant current controller KP1352, with 650V power GaN FET. The highest switching frequency of KP1352 is 600kHz, and it can operate in the critical conduction mode in a full range, reducing the volume of the magnetic device and thereby increasing the power density.

The demo board is typically designed for 50W application with 120VAC to 277VAC, High PF>0.9, THD<20%, and with output 450V/110mA within LED Filament Lamp.