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Thread: XMC4800 BAD Batch

  1. #1
    Beginner Beginner NickyKremers is on a distinguished road
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    XMC4800 BAD Batch

    Hi,

    We are using the xmc4800 F100x2048 and used in about 150 Ethercat devices, with great success. Recently we received a new batch of 10 pieces and already 3 chips have a broken connection between die and pin pad. All of them have lost a connection on an analog input pin, for all 3 it's on a different pin.
    It looks like the die is still working, if I configure the pin as an input pin and make an internal pull up, I see the input is always high and with pull down always low. Signals from the outside are not coming in.

    Maybe we received a bad batch or imitation chip as it is hard to find chips in these days. We have another 50 chips at our supplier on stock from the same batch, but are a little afraid to use them now. Do more people experience the same problem as we do?


    Kind regards,

    Nicky

  2. #2
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    BGAlakananda is on a distinguished road
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    Hi,

    Can you please contact the distributor in your region and can you log complain ?
    Can you also let us know from where you have purchased these parts?

    Regards
    Alakananda
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  3. #3
    Beginner Beginner NickyKremers is on a distinguished road
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    Hi Alakananda,

    Thank you for your reply,

    We purchased the parts at Digikey.nl. Code on all chips is 84P2X389X08 G2124, We also have bought some chips at Farnell.com with the same code, only not used yet.

    We are currently running some tests to determine if we damaged the chip from our side. If this is not the case than we will contact the supplier. For now we just wanted to know if more people experienced the same issue as we do.

    Kind Regards,

    Nicky

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