ZHCSJD3B July 2018 – February 2019 BQ25150
For a 300mA maximum allowable charge current, the desired maximum FAST_CHARGE register code (decimal) is 120 when ICHARGE_STEP = 1 (2.5mA). Using Equation 6, the calculated RIMAX value is 3.52-kΩ. Note that if ICHARGE_STEP is set to 0 (1.25mA), the IMAX value is reduced be half to 150mA.
If the system designer does not wish to use the IMAX function to limit the maximum charge current, 10KΩ resistor from TS to ground must be connected.