TPS25751: Setting the 5V supply for negotiation

Part Number: TPS25751
Other Parts Discussed in Thread: BQ25792,

Tool/software:

Dear Sirs and Madams,

We use a combination of TPS25751 and BQ25792.

When TPS25751 is used as the source, is it correct to understand that the 5V voltage during negotiation is supplied from PP5V?

In the section indicated by the red line above, SW1 and SW2 of the BQ25792 are not switching, so it is understood that PP5V is being supplied.

In our configuration, the USB 5V output (PDO1) is set to be output from the BQ25792, but regarding the VBUS 5V during the above negotiation, is there a way to prevent PP5V from outputting to VBUS?

From what I've researched, it appears that the 5V during negotiation cannot be changed from PP5V.

Regards,

Masashi