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UCC28063: UCC28063试产后,发现异音&异常问题待解决。

Part Number: UCC28063


Hi TI Team,

客户现使用如下UCC28063的交错式PFC IC,实际使用的时候,发现C220需由101改成33P,才能解决90V开关机有异音(电压是90-305,标准是108-277)

但是ZCDC215C214改太小,PF值和THD会变差。

不改的话,90V开关机异音,轻重载切换 PF会异常炸机。245V会有异音。


想请你们来协助解决一下此PFC问题,谢谢。