LM124AQML: CDFP power dissipation per device/per pkg and open collector DC output maxes

Part Number: LM124AQML

Tool/software:

Hi all,

I am specifically interested in the 5962R9950402VDA space-grade CDFP variant of the LM124AQML. 

The parameters I am interested in is the max power dissipation for CDF package, and if possible max power dissipation per device per package. I believe I'll also require the Theta JC for this package as well. 

Additionally, I am interested in the max open collector DC output. 

If I've somehow missed these parameters for this particular package at: https://www.ti.com/product/LM124AQML-SP/part-details/5962R9950402VDA, please let me know.

I appreciate any guidance,

Thanks 

  • Hi Diego, 

    if possible max power dissipation per device per package. I believe I'll also require the Theta JC for this package as well. 

    For space application, thetaJC figure may be more applicable to calculate power dissipation of an op amp device, since the op amp package has to be cooled via cold cooling block or TEC cooling block etc. in space. 

    https://www.ti.com/lit/an/spra953d/spra953d.pdf?ts=1742355880707

    https://www.ti.com/lit/an/slrr012/slrr012.pdf?ts=1742355562039&ref_url=https%253A%252F%252Fwww.google.com%252F

    The information above is normalized to dissipated power in the op amp. If I know that total dissipated power for the loaded condition, I can estimate the temperature rise corresponding to the amount of power dissipation, and I can estimate the total temperature rise in a given application. 

    The op amp's dissipation power can be simulated as well based on output current consumption and voltage drops across the op amp's output stages. 

    Additionally, I am interested in the max open collector DC output. 

    Here is the simplified block diagram. I am not clear what you are referring to the max. open collector DC output. 

    Are you refer to the max. output voltage swing at the op amp's output, see p. 9 of the datasheet

    If you have additional questions, please let me know. 

    Best,

    Raymond

  • Hi Raymond, thanks for your response.  

    As for open collector DC output, yes the max output voltage swing is the parameter I was looking for. 

    What Theta JC package parameter would you say is most similar to the CDF package?

    Thanks

  • Hi Diego, 

    What Theta JC package parameter would you say is most similar to the CDF package?

    What Theta JC package parameter would you say is most similar to the CDF package?

    CDF and CDIP packages are very similar. Both packages contain dual op amps. Two packages should have similar Theta_JC figure.  

    If you have other questions, please let me know. 

    Best,

    Raymond