SLUUBD4A April 2016 – November 2022 BQ27220
The wake-up comparator indicates a change in cell current while the fuel gauge is in SLEEP mode. The Operation Config A [WK_TH1:WK_TH0] bits select the appropriate comparator threshold for the sense resistor value used. The Operation Config A [WAKE_EN] bit selects one of two possible voltage threshold ranges for the given sense resistor selection. An internal interrupt is generated when the threshold is reached in either the charge or discharge direction. Setting both [WK_TH1] and [WK_TH0] bits to 0 disables this feature.