TPS25751: Any settings when supplying power through PPHV pin on Source case.

Motoyasu Hattori

Part Number: TPS25751

Tool/software:

Hi,

When Source_POD1 sets 5V @ 3A through PP_5V, TPS25751D can work correctly. However, when Source_POD1 sets 5V @ 3A through PP_EXT1(PP_HV), TPS25751D repeats negotiation and can not connect with USB_PD_Sink unit.

*1. Until negotiation is finished, is 5V_Power required on PPHV pin? By when is 5V_power supplied on PPHV pin?

*2. Could you please let us know any other settings to apply power through PPHV?

Thanks and best regards,
M.Hattori

27 days ago

0 Katilynn Mar 26 days ago

TI__Intellectual 1620 points

Hello Motoyasu,

Please see the attached link for response to the E2E thread.

(+) TPS25751: Any settings to supply power through PPHV on USB-PD Source case - Power management forum - Power management - TI E2E support forums

Thank you,

Katilynn