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UCC29002: Operating temperature

Part Number: UCC29002

Hi Sir,

may we know which operating temperature is the main one? because we  measure the top side temperature up to 107 deg. any risk?

  • Hi Tommy,

    The absolute maximum ratings are there to show that the device may fail if these values are exceeded. 

    The recommended operating junction temperature range is -40 to 105C and that is where our electrical characteristics are guaranteed:

    To determine how hot the actual junction temperature is, You would need to use ψJT. The equation you would use is:



    TCASE is the temperature you measured

    ψJT is from the thermal information:

    And power is the total power dissipation within the IC.

    Since you are measuring 107C, you are already running above the recommended operating temperature, 

    I hope this helps to answer your question.