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Thread: Gate drivers

  1. #1
    Beginner Beginner Gyro Gearloose is on a distinguished road
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    Gate drivers

    What gate drivers can be used for CoolSiC mosfet devices?

  2. #2
    Beginner Beginner SiCguru is on a distinguished road
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    CoolSiC MOSFETs are fast-switching AND high-voltage devices, whose common mode transients (CMT) can reach and exceed 50 V/ns. Higher switching speed requires higher gate drive current as well as well-matched delays and accurate timing.
    CoolSiC MOSFETs may need a negative gate voltage or a Miller clamp. In addition, CoolSiC MOSFETs may need faster short-circuit protection as their short-circuit withstand time is smaller than with traditional IGBTs.
    In case short-circuit capability is not required, higher gate voltage may be utilized to reduce RDSon.

    Furthermore you can find a table with the respective gate drivers on the web page under: https://www.infineon.com/cms/en/prod...d-gate-driver/

  3. #3
    New Member New Member Fränce is on a distinguished road
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    Hi,
    you mentioned the accurate timing in the gate driver. Why is this important?

    Thanks!
    Fränce

  4. #4

    Infineon Employee
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    electricuwe is on a distinguished road
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    Hi,

    the accurate timing is especially important when you are using high switching frequencies. If there are to large tolerances in timing this will require large deadtime/interlock delay time, which has negative impact on the control design. Furthermore large deadtime will lead to longer body diode conduction time which has negative impact on efficiency (with both switches of a halfbridge provided with exactly matching gate signals, synchronous rectification will take place all the time).

    Best regards,

    electricuwe
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  5. #5

    Infineon Employee
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    Olaf Bendix is on a distinguished road
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    Hi,

    the Infineon gate-driver you can find under following link: https://www.infineon.com/cms/de/prod...te-driver-ics/

    If you scroll down a bit, you can find a big selection table. Here you can select corresponding your search options, like CooSic, Application, configuration,...

    So far you click on the corresponding areas, you will find your gate-driver according to your whishes. Hope it helps
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  6. #6
    New Member New Member Plasterer is on a distinguished road
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    This info was very helpful. I was looking for drivers for CoolSiC mosfet devices everywhere. I struggle even with Google. Thanks guys!

    Juan from Plasterer Central Coast

  7. #7
    New Member New Member appshuk is on a distinguished road
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    Thank you all for having such a helpful conversation about CoolSiC. I learned a few things from this chat.

    Appel from Concrete Company Louisville

  8. #8
    New Member New Member diplo777 is on a distinguished road
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    thank you for sharing this. This is really helpful. party bus tampa

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