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请教个关于UCC28810EVM-003评估模块的问题

Other Parts Discussed in Thread: UCC28810EVM-003, TPS92020

UCC28810EVM-003是个不错的是LED照明方案,采用了三级驱动,PFC级,BUCK级和DC隔离级,效率能达到91%,但是关于DC隔离级我有个问题不太清楚,我想请问一下工程师们这个方案的DC隔离级只能采用TPS92020吗?有没有其他芯片能代替这个开关驱动器的?考虑到谐振不好做,想换一块IC,所以想请教一下!谢谢!