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Original question:

UCC27531-Q1: 2-switch flyback topology. UCC27531-Q1 to drive SiC mosfet

UCC27531-Q1: Functional Safety documentation question

adham Asaad
Prodigy 10 points
Part Number: UCC27531-Q1

Tool/software:

On the Functional Safety Information UCC27531-Q1 Functional Safety FIT Rate, FMD, and Pin FMA document:

Page 4 there is a duplication, is this a typo, and what is supposed to be in its place?

  • 0
    TI__Genius 13115 points

    Hey Adham,

    Thank you for reaching out with your questions regarding the UCC27531-Q1.

    Thank you for making us aware of what appears to be a typo. I am investigating this now to determine what exactly it should say there and then will work to make the correction to the document. Once I confirm what this should show, I will update you here and also be working to update the document to publish online.

    Thank you,

    William Moore

  • 0 in reply to William Moore
    TI__Genius 13115 points

    Hey Adham,

    I was able to confirm with our Functional Safety team that this is a typo and has been submitted to be fixed.

    The correct table should look something like this.

    Die failure mode

    FMD %

    OUT stuck on

    33

    OUT stuck off

    33

    OUT undefined

    33

    Thank you,

    William Moore