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DRV8881: PWM off time

Umberto Frangi
Expert 4045 points
Part Number: DRV8881

Hi,

 I do not understand clearly the specification of PWM offtime in the datasheet and specifically the logic low/logic high numbers that are typically 20usec/30usec.

How can they be consistent with an application that uses the driver at 100Khz(10usec period)?

Thanks

Umberto

  • 0
    TI__Guru** 114905 points
    Hi Umberto,

    In most use cases, the outputs can be set to a logic high or low and allow the DRV8881 to regulate the outputs.

    If an application is trying to PWM the inputs at high frequencies, the current regulation settings can adjusted such that it is not operating. This would allow the inputs to control the outputs.