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TL074: Max Junction Temperature and Theta-JA

Collin Wells
Guru 64125 points
Part Number: TL074


Posting for FAE:

 

Hello Collin,

 

We’d need your support to get some INFO here for product approval. Thanks.

TL074IDR: Max. Junction temp and Theta-JA

 

Regards,

Brian

  • 0
    TI__Guru 64125 points

    Hello,

    I am going to double-check with the local TL07x expert but it looks like the absolute maximum rating for Tj is 150C as shown in the abs max table in Section 6.1 of the PDS.  Be mindful that the specified operating temperature is -40C - 85C though for the "I" version.

    The Theta-JA applies to all grades of the device and depends on the package.  I've copied Table 6.4 from the TL07x PDS below.

  • 0 in reply to Collin Wells
    TI__Genius 14280 points

    Thanks for feedback. Once you have confirmed with TL074xx expert, please offer the info. thnaks.

  • 0
    TI__Guru**** 166116 points

    Brian,

    The electrical table perfomance applies to TA = TJ = 85C.  With heavier loads TJ will be significantly greater than TA. Theta-JA is in the data sheet. However, that number applies to JDEC standard test board. Theta-JA on application boards vary based on many factors. Max junction is 150C however this adversely affects expected lifetime of the device.