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PCA9306-Q1: I2C Buffer Required in -40 to +125 degrees C Range

Jarrett Wehle
Prodigy 20 points
Part Number: PCA9306-Q1

Does TI provide a I2C buffer or level translator similar to that listed that can operate specifically at 125 degrees C? If not would a device like this be capable of doing so reliably as it is automotive rated, and TI do you have any information or tests on this? Thank you.

  • 0
    TI__Guru 73761 points

    Hey Jarrett,

    "Does TI provide a I2C buffer or level translator similar to that listed that can operate specifically at 125 degrees C?"

    The highest "RECOMMENDED operating" temperature we can guarantee is with the PCA9306TDCURQ1. This device offers at most 105C recommended operating.

    We unfortunately do note have any devices which go above this. Keep in mind that this is recommended operating so outside of this range the device can still function but could potentially not be within datasheet spec.

    "If not would a device like this be capable of doing so reliably as it is automotive rated, and TI do you have any information or tests on this?"

    This device itself can go above 105C but the FIT (Failure in Time) rate becomes larger outside of this range. We have not done testing on this; I assume the device will break somewhere above the 150C mark. Above the 105C mark I suspect the Ron to be larger which could result in slightly longer prop delays and slightly higher VoL values seen by the transceivers. 

    Thanks,

    -Bobby