Description

This design is based on PMP4350 and supports higher output voltage up to 380V. Different from PMP4350: the high voltage LED switch MOSFET is removed and reduced overall cost. With additional resistor and capacitor from LEDSW to CS pin: the LED driver demos good linearity dimming performnace under analog and PWM dimming mode. High effiency (>94%): high PF(>0.94) isolated AC/DC single string output LED lighting solution for high watt (>100W) general LED lighting. The topology uses Transition Mode (TM) PFC plus LLC control and achieves high efficiency (>94%) and high PF(>0.94). The target application for this reference design is TV LED backlight: outdoor and high-bay general LED lighting.