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UCC28180: 降低过电流阈值

Part Number: UCC28180
你好

我的客户有过电流阈值问题。 客户看到带有UCC28180的FET已损坏,故障原因是较高的ISOC和过电流损坏的MOSFET。 (I_SOC=21.85A,Ipcl=36.50A)

但是,客户无法增加Rsense值,因为Rsense增加会导致ICOMP电压超过6V。 它会导致当前循环为开环。

客户如何减少过流再稳压?

PFC design worksheet-Ver1.0-1008_UCC28180.xlsm

谢谢