SLUSE48B May 2021 – November 2023 BQ79652-Q1 , BQ79654-Q1 , BQ79656-Q1
PRODUCTION DATA
The OV, UV, OT, and UT DAC values are multiplexed to the AUX ADC from which the host can read out the values as part of the diagnostic check on the protector threshold settings.
To measure the protector’s DAC value, it is recommended to lock the OVUV or OTUT protectors to a single channel through OVUV_CTRL[OVUV_LOCK3:0] for OV and UV DAC measurement; and through OTUT_CTRL[OTUT_LOCK2:0] for OT and UT DAC measurement, and restart the OVUV protectors or OTUT protector to run in the single channel run mode. Host ensures the locked cell channel is not under OV or UV fault or the locked GPIO channel is not under OT or UT fault. Otherwise, the DAC measurement will not be reflecting the triggering threshold value. Note that the OV and UV DAC value is (0.8 x the threshold setting).