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I am doing a datasheet comparison of the AUIRFP4568 and the IXTH150N15X4 MOSFETs. The MOSFET is for a three phase inverter working as MCU (Motor Control Unit) to control a PMSM motor, and will be driven with this gate driver from Infineon.

I am unable to conclude if the value given on both datasheets for dv/dt capability is comparable or not, as I am unable to understand the test conditions. Could anyone please guide me or share their opinion if the dv/dt capability of both MOSFETs is the same or different? If the same, then why, and vice versa.

What I mean by dv/dt capability here is with regards to turn-on and turn-off time. This has a direct impact on EMI related issues and this can lead to changing EMC requirements.

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    \$\begingroup\$ What do you mean by "dV/dt capability" here? Body diode recovery time? Turn-on/turn-off time? What specific application are you evaluating the MOSFETs for? What's driving the MOSFET gates? \$\endgroup\$
    – Polynomial
    Commented Jan 19, 2023 at 16:15
  • \$\begingroup\$ Or are you worried about dv/dt induced turn-on? \$\endgroup\$
    – John D
    Commented Jan 19, 2023 at 16:35
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    \$\begingroup\$ 18.5kV/µs is a mere 8ns to go from zero to Vds(max), you will have a hard time exceeding this (but it's probably possible). 50kV/µs, probably impossible by the transistors alone (one would have to be driven by a much faster type). Do you have reason to be concerned about this figure? Or is that the question, you don't know the significance of this figure? \$\endgroup\$
    – Tim Williams
    Commented Jan 19, 2023 at 17:25
  • \$\begingroup\$ addressing to question asked by polynomial, what i mean by dv/dt capability here is with regards to turn on and turn off time. since this has direct impact on EMI related issue and this can lead to changing in EMC requirements. This mosfet is for three phase inverter working as MCU(Motor Control Unit) to control PMSM motor. Gate drivers from infenion. here is the link infineon.com/cms/de/product/power/gate-driver-ics/auirs21814s \$\endgroup\$
    – Alison
    Commented Jan 20, 2023 at 8:13
  • \$\begingroup\$ john D , yes that is also something which i am worried about with regards to false turn on \$\endgroup\$
    – Alison
    Commented Jan 20, 2023 at 8:13

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