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The datasheet of the ST VNH5050A-E H-bridge motor driver says it can take PWM up to 20kHz. Then, on page 10 of the datasheet, it says PWM = 20 kHz in the supply current parameter. Does this mean that the PWM frequency has to be 20kHz or, as it says in the description, it can be up to 20kHz?

Arduino Mega runs default PWM at 490Hz if I am not mistaken. I am trying to find a driver chip that can handle at least 30 amps with a load voltage of up to 12-18V for a motor.

I'm trying to figure out if this chip will work with the PWM on the Arduino Mega.

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The specification of 8mA supply current (maximum) is guaranteed at 20kHz and under the other conditions stated.

The PWM can be any frequency from 0 to 20kHz.

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  • \$\begingroup\$ Awesome, thank you! \$\endgroup\$
    – mScientist
    Commented Jun 28, 2018 at 17:24

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