TPS65994AD: HPD RX signal at TPS65994

Gary Teng

Genius 5850 points

Part Number: TPS65994AD
Other Parts Discussed in Thread: TPS65988, TPS65994

Tool/software:

Hi Sir,

My customer want to implement a simple PD passthrough function by using TPS65994AD. (PDO is 5V and 20V only).

1. Can HPD port (GPIO0/1) be HPD TX and HPD RX for port A (DFP) / B (UFP?

2. Any GPIO event I can use to disable UFP port until DFP port get 20V PDO?

Best regards,

Gary Teng

0 Gary Teng over 1 year ago

Genius 5850 points

Hi Sir,

Any comment about TPS65994AD's HPD RX function and port control function by GPIO input event?

Thanks and regards,

Gary

0 Gary Teng over 1 year ago in reply to Gary Teng

Genius 5850 points

Or we have to use TPS65988 for the HPD TX/RX function?

0 Christopher Lim1 over 1 year ago in reply to Gary Teng

HI Gary,

The engineer assigned to this thread is currently Out of Office due to a holiday. He should be back tomorrow. Please expect some delays.

Thanks and Regards,

Chris

+1 Ghouse Mohiuddin23 over 1 year ago in reply to Christopher Lim1

Gary,

TPS65994 doesn't support HPD Tx. You hve use TPS65988 for HPD Tx/Rx or use TPS65992.

I don't think there is a GPIO like that that prevents PD. It has to be done through I2C.

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