In bq24171EVM, sense resistor(R2) of value 10 mohm with wattage of 0.5W is used. It was selected based on the input voltage (4.5V - 16V) and load current (5A) right?.
In our design, input voltage will be 12V , load current will be 3A max and we will be using 10 mohm. The calculated sense resistor wattage based on the formula P = I2R is 0.09 W.
My doubt is that I can use 0.25W sense resistor right?. Because sense resistor used in board has dimension of 0.200" L x 0.100" W (5.08mm x 2.54mm). It consumes lot of space. That's why we want it in smaller size with lesser wattage.
Please clarify whether I can use 0.25W sense resistor or not?