SLVSD74D December 2015 – December 2019 TPS2H160-Q1
To keep the 1-A nominal current in the 0 to 4-V current-sense range, calculate the R(CS) resistor using Equation 9. To achieve better current-sense accuracy, a 1% tolerance or better resistor is preferred.
To set the adjustable current limit value at 2.5-A, calculate R(CL) using Equation 10.
TI recommends R(ser) = 10 kΩ for 5-V MCU, and R(pu) = 10 kΩ as the pullup resistor.