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  1. #1
    Beginner Beginner XaviPacheco is on a distinguished road
    Join Date
    Jun 2018

    IRF200P222 and 1EDN7512


    I will control a brushed DC motor using low side switching. [Picture attached]
    How can I match the gate driver 1EDN7512 with this MOSFET (IRF200P222)? It has two inputs (IN+ and IN-) and one output.
    PWM frequency is 25 kHz (or lower). The power supply for the gate driver is 12V. The bus voltage is about 150VDC. How do I find the proper gate resistor?
    Click image for larger version

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  2. #2
    Intermediate Intermediate forix is on a distinguished road
    Join Date
    Feb 2012
    See figure 6 in the datasheet. According to your maximum gate current IGmax you wish to drive, which depends on switch on/off time and frequency, the gate resistor's value is approx RG=12V/IGmax.

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