UCC28730请TI确认是否有谷底导通功能！

Hi

   建datasheet第一页： http://www.ti.com.cn/cn/lit/ds/symlink/ucc28730.pdf

   针对最高总体效率的谐振环谷值开关运行

您的意思是某些功率点不能实现谷底导通？那Datasheet第11页The controller operates in valley-switching in all load conditions unless the VDS ringing is diminished to the point where valleys are no longer detectable.