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LM5107 HO output Gate Driver internal structure

Richard Chung
Prodigy 10 points

I have an external 3A 200V Schottky rectifier in parallel with the internal rectifier show within block diagram on page 1 of datasheet. If my external schottky rectifier shorts, what is the impedance and structure of this output gate driver?  

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    TI__Intellectual 2805 points
    Hi Richard,

    Scrolling through our E2E posts I noticed that this post was not answered, our apologies!

    The shorted external rectifier will carry almost all the current and you will have VDD = VHB.

    If the external diode shorts, the bootstrap resistor should be sized to handle the inrush current.

    Regards,
    Mateo