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The current limit is set on the eFuse IC using a resistance from the ILIM pin to ground. In order to allow this limit to be easily adjustable without replacing components or opening up the PCB’s enclosure, we will use a digital potentiometer/rheostat IC.
This digital POT IC features a range from about 150 Ω - 1150 Ω, which covers the range of resistances calculated above that we need to be able to set the eFuse. It doesn’t fully cover the lower end of resistance values, but that is for very high current limits that we are unlikely to set.
Another potential option could be the AD8400. It has a smaller package, more resistance positions, and a smaller package, but is significantly more expensive.