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Testing for Eon and Eoff

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David2023
David2023 Contributor Level 1
edited May 20 in Discrete Products

Hello,

I have a question as below.

Which one is the standard test method, Figure 1 or Figure 2.

Figure 1 have very long pins and parasitic inductance.

image.png

BR

David

Comments

  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
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    Thank you for your post, it has been approved and we will respond as soon as possible.

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hello David2023,

    Generally, having short leads contributing to low parasitic inductance is desired. For our testing and characterization Figure 2 is used.

    However, in some designs long leads are unavoidable due to the mechanical assembly used. It may lead to higher ringing and lower switching speeds and therefore higher switching losses. This is a trade-off to keep in mind. Thank you!

  • David2023
    David2023 Contributor Level 1
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    Thanks TBhatia.

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hi, I hope that this answered your question. I will close this discussion for now but if you have a follow up question, please "Start a New Discussion" and we would be glad to support you further.

This discussion has been closed.