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DRV8245S-Q1LEVM: PWM Freq change

Part Number: DRV8245S-Q1LEVM

Hi Team,

Customer wants to check if our EVM can change output freq to any other value instead of 20KHz?

I couldn't see any control for this in the GUI, thanks!

Andrew

  • Andrew,

    It is not available today, but we are currently working on a new GUI that can adjust to 10k, 5k, 2.5k.  Is that sufficient? 

    New GUI will be available in January of 2022.

    Regards,

    Ryan

  • Hi Ryan,

    Thanks for the feedback!

    Customer wants to add 25k as well, thanks.

    By the way, customer wonder in DRV8245S-Q1 register, do we have anything to change operating frequency?

    I was thinking this operating freq is depending purely on the input signal and It's nothing to do with our DRV device, correct?

    Thanks!

    Andrew

  • Andrew,

    You are correct.  Device has no way to adjust PWM frequency.  That comes from the MCU.

    25k is not easy to add.  It needs to be a multiple of 20k for simplicity.  We provide firmware and they can make the change themselves if absolutely required.

    Regards,

    Ryan