Description

PMP6252 is a reference design for 90W LCD TV power by using the UCC28051 to construct PFC: UCC25710 to construct LED driver LLC converter: UCC25600 to construct 5V and 12V converter and UCC28610 to construct standby flyback converter. This driver provides 4 outputs including LED driver: 12.7V 3A: 5V 3A and 5V standby 2A; and has the capability to operate at 90~264Vac.The LED driver is designed using multi-transformer topology by UCC25710 which can improve efficiency: has protection function and decrease component count. A thorough analysis of PFC: LLC: cascade QR flyback operation and performance along with design optimization guidelines are presented. Experimental results obtained on every general condition load are provided.