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TPS65217: EVM Setup Issue

Tharini Thamarai Kannan
Prodigy 10 points
Part Number: TPS65217
Other Parts Discussed in Thread: USB2ANY,

 

Our customer bought TPS65217EVM, they followed all the jumpers.They did pump 3V3 and 5V into the evaluation board and still no output. Can anyone guide us  how should they set for the evaluation board?"

  • 0
    TI__Mastermind 22641 points

    Hi Tharini,

    Thank You for using E2E! Could you please provide the information below so I can better understand the issue and provide feedback?

    • Which EVM did they order? TPS65217CEVM or TPS65217DEVM? 
    • Are they using the USB2ANY or they are supplying the 3.3V with an external supply?
    • Does the customer have the default jumper config?
    • Where are they applying the 3V3 and 5V?
    • Can they provide a scope capture showing the power-up waveforms in the following pins: AC, USB, PWR_EN and the output of any converter?

    Thanks,

    Brenda

  • 0 in reply to Brenda Diaz
    TI__Expert 3755 points

    Hi Brenda,

    here the answers:

    TPS65217CEVM

     

    • 2. Are they using the USB2ANY or they are supplying the 3.3V with an external supply?

    Supply 3.3V externally

     

    • 3. Does the customer have the default jumper config?

    Follow the one recommend in the evaluation board settings

     

    • 4. Where are they applying the 3V3 and 5V?

    Apply 3V3 on 3P3 and ground on connector J8

    Try applying 5V on BAT/AC/USB with respect to GND

     

    • 5. Can they provide a scope capture showing the power-up waveforms in the following pins: AC, USB, PWR_EN and the output of any converter?

    There is no voltages at any of the outputs.

    Kind regards,

    Marion

  • 0 in reply to Marion Loessl
    TI__Mastermind 22641 points

    Hi Marion,

    Thanks for providing the information in the previous message! The scope capture that I requested before is important to evaluate the signals on the power path that supplies the PMIC rails. The output voltage from the converter can be excluded as there is no output voltage but AC, USB, SYS and PWR_EN are critical because they are input signals to the PMIC. If the customer could also provide a picture of their setup, that would be great.  

    Since the USB2ANY is not used, I suspect the external 3.3V is probably not being applied to the right pin on the J8 connector. Can they try the suggestions below and let me know if they see any difference? 

    • Apply the external 3.3V on the J8 connector and measure the voltage on the "3P3" pins on JP18 and JP9 to make sure the voltage is getting there.
    • Supply 5V only to the AC pin. 

    Thanks,

    Brenda