USB overvoltage protection

  • Hello,


    make it sense to leave the VDD pin of the protection circuit open? How will the positive overvoltage discharge without breaking one of the diodes?




    In my opinion the circuit should be something like this.



    Thank you for reply.


    Best regards,

    Daniel

  • Hello,


    you are right! Normally we connect pin 5 to USB-VBUS and leave pin 1 open. This is a mistake.

    Thank you for the hint!



    Best regards,


    Torsten

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
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