• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 345 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS65982-EVM: Power issues on TPS65982evm

Daniel Kociolek
Expert 3100 points
Part Number: TPS65982-EVM
Other Parts Discussed in Thread: TPS65982

Hi all,

I'm using two TPS65982 evm, one as sink, the other one as source. 

I took off J6, J7 is not soldered, and J4 is not present on my sink. I use J5 3V3 Connector as power supply input for the tps (3.3V generated by external generator). 

When I plug the source to my sink (12V or 5V) my TPS source keeps on crashing until I take off 3.3V.

The waveform below illustrates the VBUS behavior (the blue one).

Is there something I forgot to set? 

Thanks in advance for your help,

Daniel

  • 0
    TI__Genius 16370 points
    Daniel,

    Can you please help w/ below information to investigate further?
    - Do you see a stable 12V contract if 3.3V is taken off from the sink?
    - Pl share the configuration files for both the source and sink?
    - Pl share the PD logs, preferably captured by Lecroy?

    Thanks & Regards,
    Praneet