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HD3SS3220: Voltage leakage to VDD_5V in the condition of IC power off

Part Number: HD3SS3220

Hi team,

When my customer connected HD3SS3220 to PC with USB C - A cable in the condition of IC's power off, they found that there is 0.1V of voltage leakage to VDD_5V. As the datasheet described, they supplied VBUS and VDD_5V separately. So, customer think the voltage is leaked from CC pin. Is there any point that might leak the voltage to VDD_5V?

Regards,

Saito