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TLVH431A: Enquiry on Junction-to-ambient thermal resistance

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Replies: 3

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Part Number: TLVH431A

Hi,

This is for TLVH431AQDCKR P/N (DCK Package).

My customer would like to understand why the Junction-to-ambient thermal resistance spec is smaller than Junction-to-case thermal resistance.

As per their understanding, Junction-to-ambient thermal resistance is always bigger than Junction-to-case. Is the thermal resistance spec information correct?

Please kindly help to advise, thanks.

Best Regards,

Philip

  • Hi Philip,

    it seems the numbers are swapped. I am unsure on how this happened. the Rja should be 259 and Rjc should be 87.

    I will work on getting this fixed on the next revision.

    -Marcoo

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  • In reply to Marcoo Z:

    Hi Marcoo,

    Thanks for the confirmation.

    I will wait for the next revision before I submit the revised document for document approval.

    Regards,

    Philip

  • In reply to Philip:

    Hi Philip,

    Sounds good!

    I will work on the revision but it will take a while for release.

    -Marcoo

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    If you feel your thread is resolved, please selected Answered.

    Looking for the lowest noise voltage reference? Check out the new REF70  family of products starting with the REF7025 with 0.22 ppm p-p of noise.

    Check out: Voltage Reference Design Tips For Data Converters a new app note that discusses voltage reference error and how it affects ADCs/DACs

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