TPS65994AD: PD3.1 communication issue

Jeff YANG

Genius 5715 points

Part Number: TPS65994AD
Other Parts Discussed in Thread: TPS65994BG, BQ25758, PMP

Hi,

We have apply PD3.1 EVM set(TPS65994BG+TPS26630+BQ25758) for test.

And we found some PD3.1 cheater have communication issue. Can't normally output EPR 28/36/48V.

Would you please help us check why cause this issue?

It can open with GRL tool.

Thanks!

Jeff

0 Christopher Lim1 over 1 year ago

Hi Jeff,

I'll take a look at this and get back to you next week.

Thanks and Regards,

Chris

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

Hi Jeff,

What is a "PD 3.1 cheater"?

Are you able to get normal SPR voltages?

Is this the set with the green PMP board? Can you send a picture of your setup? Are you using the 994BG as source or sink?

Also, please send the project you are using with the EVMs.

Can you explain the differences in setup between the 3 captures you sent? It looks like two work fine, and only one is having difficulties with EPR?

What devices are you using to test with?

Thanks,

Chris

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