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  • TI Thinks Resolved

DS36C278: Supply voltage drop below recommended range

Part Number: DS36C278

If supply voltage of the device drops down to 4.5V (recommended operational range is 4.75V to 5.25V) will device fail or it will provide lower output voltages while keeping overall functionality? The duration of the voltage drop is about 20ns (max) with the 100KHz of periodicity

Thank you.

Karen

  • Hey Karen,

    I've assigned the engineer responsible for this device to this post.

    As this is the end of the work week here, you will likely hear back by Monday at the latest.

    Thanks and sorry for any inconvenience,
    -Bobby
  • In reply to Bobby Nguyen:

    Hi Karen,

    The part is on order for us to run some tests. I'll get back to you once we have the results. Thanks for your patience.

    Regards,
    Eric
  • In reply to Eric Schott48:

    Hi Karen,

    Just wanted to give you an updated. We're expecting to get the device in early next week for testing. Let me know if there's anything I can help with in the meantime.

    Regards,
    Eric
  • In reply to Eric Schott48:

    Hi Eric,

    Thanks for keeping posted.

    Regards

    Karen

  • In reply to Karen Sahakyan:

    Hi Karen,

    The test suggest that the device retains basic functionality when the supply voltage is lowered indefinitely to 4.5-V . As you suspected, the driver outputs a lower voltage under these conditions. The specified supply range is most likely above this because a few other specifications may not be guaranteed.

    Due to the frequency of this under-voltage condition, any effects could be minimized by ensuring decoupling capacitors are used in your application.

    Thanks again for your patience with this one.

    Regards,
    Eric

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