TPS6598x support team,
Usually, CC_5V0 and CC_CABLE together is connected 5V power source as shown in the following Figure 20.
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As for the quiescent current on CC_5V0, it is spedified as ICC5VACT and ICC5VSD as followis.
But, as for the quiescent current on CC_CABLE, it is not specified.
How much is the qeiescent current?
Regards,
Tamio