Calculations for resistors of TB67H450FNG

Hi, I'm trying to use a TB67H450FNG and I'm having trouble with the current sense resistor. I want to use a output maximum of 2.5A but I don't understand how to calculate the Vref and RRS value to get the values ​​needed for an output amperage of 2.5. and I also don't understand how to use the equation in the datasheet. Thanks for your attention.

The datasheet I found includes an example:

Does that help?

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