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THS4031: Theta JC (Bottom)

Intellectual 1155 points

Replies: 3

Views: 104

Part Number: THS4031

Hi Team,

Our customer needs the theta JC (bottom) thermal resistance for part THS4031 (SOIC package).

This is not given on the datasheet. Do we have data on this?

Thanks in advance.

Regards,

Jejomar

  • Hi Jejomar, 

    Yes, I can get this data for you. The THS4031 thermal model was created before we were using the theta JC (bottom) spec. I will request for a quick turn-around but it may take up to two weeks to receive the new model. 

    Regards, 

    Jacob Freet 
    High Speed Amplifiers

  • In reply to Jacob Freet:

    Hello Jacob,

    I understand. Thank you so much for looking into this. We will be waiting for your updates.


    Regards,

    Jejomar

  • In reply to Jejomar Iidefonso:

    Hi Jejomar, 

    Below are the updated values. My apologies, but the SOIC package doesn't actually have a Theta JC bottom because it does not have a thermal pad on the package. However, the other values should help compute a more accurate temperature. Below is a link to a document that explains how to best use the measurements. 

    http://www.ti.com/lit/an/spra953c/spra953c.pdf

    Result- Theta JA-High K 123.8
    Result-Theta JC, top 67.0
    Result-Theta JB 65.8
    Result- Psi JT 18.5
    Result- Psi JB 65.4
    Result-Theta JC, bottom n/a

    Regards, 

    Jacob Freet 
    High Speed Amplifiers

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