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TPS65994AD: Question about TPS65994AD in dongle application

Gary Teng
Genius 5880 points
Part Number: TPS65994AD


Tool/software:

Hi Sir,

 My customer start their PD passthrough dongle by using 2 TPS65994AD as below and start debug.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1399470/tps65994ad-schematic-check?tisearch=e2e-sitesearch&keymatch=tps65994ad#

 1. There's no UFP_D setting at GUI so I copy 0x51 setting from 994BG. Those register setting looks the same.

 2. We check U4 (Upport PD) function. There's 20V charged Host Laptop. But no U3/DP signal sent. We check CC communication and see it didn't go to enter mode.

 Please help to check

1. Can 994AD be used as UFP application?

2. If it can't process DP function, can it support U3 for demo only?

3. Can 994BG be used as UFP application or other p2p device can be used?

Thanks and regards,

Gary Teng

133.rar