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TPS54160: Schematic review request

Kazuki Itoh
Genius 10820 points
Part Number: TPS54160

Hello team,

My customer observes the output voltage oscillation when start-up especially under 0 degC condition.

Could you please help me to address issue?

Please find the waveform and schematic from the internal link here.

Regards,

Itoh

  • 0
    TI__Mastermind 28020 points

    Hi Kazuki,

    I have begun looking at your waveforms and I need some clarification of each waveform.

    The waveforms are labeled PH(yellow), EN(blue), and SS(purple), but the labels do not seem to correspond to the waveform. For example, PH is not a switching waveform and SS never rises above 0V.

    Also, it would be helpful to include the VIN waveform. I would like to see VIN, VOUT, PH and EN if possible.

    You can respond here on the forum or if it is easier, you can contact me directly at jarrigo@ti.com.

    Thanks, Jason

  • 0 in reply to J Arrigo
    TI__Mastermind 28020 points

    Hi Kazuki,

    I have not heard back on this. Please let me know if you would like to follow up.

    Thanks, Jason