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UCC2897A: UCC2897 Application and EVM-48V150W Power topology introduction

Part Number: UCC2897A

目前專案是依據TI提供的EVM-48V150W設計,今天嘗試第一次開機,發現CS(current sense)pin於開機瞬間有超過12V的電壓產生,是否因此使UCC2897自行保護(CS pin超過0,5V)?

VIN(54V)VDD(11V)都有電壓存在,可正常供給IC使用。

如下紅色圈圈處會示波器量測點最下方為量測波形(maximum 12V),請協助分析無法開機的原因。

UCC2897 Application

另外請問,EVM-48V150W是使用甚麼power topology?

Thanks

Paul