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PCA9543A: PCA9543ADR Junction Temperature requests

Andy Liu3
Intellectual 2500 points
Part Number: PCA9543A

Hi team,

My customer  want to know the Junction Temperature-Tj（°C） of our device PCA9543ADR, and I don't find in our DS, please help me to find this information.

Best regards,

Andy Liu

  • 0
    TI__Guru 74292 points

    Andy,

    An applications engineer has been assigned this thread and will respond accordingly. Thank you for your patience.

    Regards,

    Eric Hackett

  • +1 in reply to Eric Hackett
    TI__Genius 15345 points

    Hi Andy,

    There are multiple ways that you calculate the junction temperature of a device. One equation is this one below:

    This report actually details many different equations that can be used to calculate the junction temperature.

    In general for logic devices the maximum junction temperature is equal to the maximum storage temperature. This is usually equal to 150 C. If you operate this device within the correct ambient temperature and within the absolute maximum ratings you don't have to worry about the junction temperature causing permanent damage to the device.

    Best,

    Chris