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DRV8718S-Q1EVM: How to select input bulk capacitor for DRV8718S-Q1

Part Number: DRV8718S-Q1EVM

Hi Team,

Could you please kindly help to check for input bulk capacitor, if we have some formula which could recommend for customer to do their design? Form datasheet, we can only find some points which would impact the selection of input bulk capacitance,  from customer side, they want to check if we could help to provide more detail formula calculation for this bulk capacitor selection? From another side, why our EVM use 470uF bulk capacitor? 

Thanks a lot for your support.

Best regards

Jie