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DRV8800: Resistor sizing

Part Number: DRV8800

I'm working on implementing the DRV880. I have a question on calculating the Rsense resistor power rating.

Rsense = 0.5V/Itrip. Assume Itrip = 1.5A. Rsense = 0.333Ohm

PRsense = i^2 * R = 1.5^2 * 0.333 = 0.5W.

Is this the correct way to calculate the power of the resistor?