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TPS3808: Thermal Information

Mark Philip Felipe
Genius 10820 points
Part Number: TPS3808

Hi Team, I hope you can help us fill in this information for our customer.

Theta Jc (Bottom), Theta Ja, Reliability Tj Max, 

Thank you very much

Regards,

Mark

  • 0
    TI__Genius 12630 points

    Mark,

    This information is provided in the datasheet in table 7.4 http://www.ti.com/lit/ds/symlink/tps3808.pdf

    Theta Jc (bottom): is not applicable for SOT23 package since there is no thermal pad, and 7.3 C/W for WSON package

    Theta Ja = 180.9 C/W for SOT23 package and 178.1 C/W for WSON

    Tj abs max = 150 C.

    Note Tj = Ta due to the low power dissipation for this device

    Please let me know if you have any additional questions. Thanks!

  • 0 in reply to Michael_DeSando
    TI__Genius 10820 points

    Hi Michael,

    I would like to know if the reliability Tjmax is the same as the absolute

    Thanks

  • 0 in reply to Mark Philip Felipe
    TI__Genius 12630 points

    Mark,

    No. The reliability Tjmax is the recommended operating max temperature at which we guarantee reliability. The recommended operating max temp is 125C.

    As noted by note #1 under table 7.1, Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

    Please let me know if you have any additional questions, Thank you!