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UCC28C44: UCC28C44在空载状态下可以正常启动,但是带载有部分产地芯片无法启动的原因是什么?

Part Number: UCC28C44

UCC28C44在空载状态下可以正常启动,但是带载有部分产地芯片无法启动的原因是什么?是否可以提供不同产地的物料丝印图片