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  • Resolved

UCC27524: Two drivers: UCC27524 and ucc27517 issu

Part Number: UCC27524

Driving waveform and schematic diagram, the MOS tube d-s voltage has obvious oscillation in the switching process, what may be the cause?

CH1:VDS  CH2:VGS

  • Hi Eagle,

    It looks like you have some oscillation due to lack of gate resistors. When paralleling MOSFETs, I recommend a gate resistor close to each MOSFETs gate terminal to reduce chances of oscillation.

    This Tech Note explains how to select your gate resistor:

    www.tij.co.jp/.../slla385.pdf

    Best regards,

    Don Dapkus

    Gate Driver Applications Engineering Manager

    Dallas, TX USA

  • In reply to Don Dapkus:

    thank you very much!
  • In reply to Eagle.Miao:

    Hi Eagle,

    Please press the green button if this resolved your issue or feel free to let us know how we can further assist you.

    Thank you.

    Regards,

    -Mamadou

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