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LM139A: More graphs/data on switching timing over temperature ranges?

Lauren Mayfield
Expert 7775 points
Part Number: LM139A

Tool/software:

My customer notices that there is a slow down in switching as temperature increases and are interested in data that validates their finding. Over temp range -34 to 85 C.

  • 0
    TI__Guru 57986 points

    Hello Lauren,

    The datasheet contains these graphs in figures 6-25 to 6-30, and they contain -40°C and 85°C. Prop delay does become longer as the temperature increases.This is typical for a bipolar device.

    The difference between -34 and -40 would be very small. We do not have any more specific data other than what is shown in the graphs. As can be seen, overdrive has the biggest influence of the prop delay.