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OMAP-L137: OMPL137 thermal behavor

Kz777
Expert 7895 points
Part Number: OMAP-L137

Hi Champs,

We have some question of OMAPL137 thermal behaver.

1: Our customer is using now OMAPL137DZKB4.

   The temperature type is Tj is 0-90. If our operation temp is over 90 degree,  what kind of issue happen ?

　Does this occur reliability issue ?  

  • 0
    TI__Guru* 78475 points

    Omori-san 

    If the device they are using  is the "D" /industrial grade part , specified to work at -40 to 90C junction, then by running the device beyond that temperature limit implies they are violating the datasheet specification - the parts are not guaranteed to work beyond  90C. 

    If they need higher temp , they can chose the "A" / extended temp parts that are rated to work at 105C. 

    Apart from us not being able to guarantee functionality they also run the risk of reducing life time of the part due to things like electromigration etc.

    You can find some EM concepts here

    http://www.ti.com/lit/an/sprabx4a/sprabx4a.pdf

    You will also see that if in the device datasheet for the parts running at 105C, the POH guidance is ~75K POH instead of the 100K POH.

    Hope this helps.

    Regards

    Mukul