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DRV8871-Q1: Power Dissipation related to PWM

Part Number: DRV8871-Q1

Hi Team,

I am trying to understand the power dissipation of the DRV8871-Q1 in more detail. There is a statement in the datasheet that specifies switching the inputs at 200kHz compared to 20kHz causes 20% more power loss. 

Is there any equation or table that shows this relationship? Is the relationship linear?

Thank you,

Jared