SLUAAT5 December 2023 BQ25756
To control maximum charge current using register only, ICHG pin is shorted to PGND and disable the ICHG pin function by setting the EN_ICHG_PIN=0 in REG0x18. Then charge current limit can be set in register REG0x02. The charge current limit range is from 400 mA to 20 A with 50 mA/step.