ZHCSJD3B July 2018 – February 2019 BQ25150
When the device is powered by the battery it is imperative that power consumption is minimized in order to maximize battery life. In order to limit the number of ADC conversions, and hence power consumption, the ADC conversions when in Active Battery Mode may be limited to a period determined by the ADC_READ_RATE bits. On the case where the ADC_READ_RATE is set to Manual Mode, the host will have to set the ADC_CONV_START bit to initiate the ADC conversion. Once the ADC conversion is completed and the data is ready, the ADC_READY flag will be set and an interrupt will be sent to the host. In Low Power Mode the ADC remains OFF for minimal IC power consumption. The host will need to switch to Active Battery Mode (set LP high) before performing an ADC measurement.