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LM4050-N-Q1: Breakdown voltage temperature coefficient clarification

Scarlett Cao
Expert 3830 points
Part Number: LM4050-N-Q1

Hi team,

Could you pls help share below Ir=1mA is spec at what temperature range? Datasheet has list 25C and full temp range spec for Ir=100uA, but didnt specify it clearly for Ir=10mA/1mA

Thank you

Scarlett

  • 0
    TI__Expert 8750 points

    Hi Scarlett,

    Given the temperature is not explicitly stated it follows the Ta=Tj=25C (seen in the first image below). 

    Thanks,
    Joshua

  • 0 in reply to Joshua Garcia
    Prodigy 30 points

    Hi Joshua,

    Two additional questions for this topic:

     1. I can easily understand the meaning of the temp coefficient at full temp range, and it can be used to calculate the over temp tolerance as the example given in the datasheet. But what's the meaning of the coefficient under TA=TJ=25℃, there is no temperature difference if the ambient temp is 25℃。

    2.  How do I calculate the temp coefficient at full temp range? Since there's no clear definition in the datasheet.

    Many thanks,

    Yuanzhao

  • 0 in reply to Yuanzhao Yang
    TI__Expert 8750 points

    Hi Yuanzhao,

    1. I agree with you there is no temperature difference if the ambient temp is 25℃. These specs should have been condensed with 20 ppm/℃ (typical) and 50 ppm/℃ (max) with TA=TJ= TMIN to TMAX.

    2. The temperature coefficient at full temp range is 50 ppm/℃ under IR = 100uA. For any other IR the ppm/℃ (max) or full temp range temp coefficient is not provided.

    Thanks,
    Joshua