SLUUBD4A April 2016 – November 2022 BQ27220
The fuel gauge typically measures battery temperature via its BIN input to supply battery temperature status information to the gas gauging algorithm and charger-control sections of the gauge. Alternatively, it can be configured to use an internal on-chip temperature sensor or receive temperature data from the host processor. See Section 3.5, Temperature(): 0x06 and 0x07, for specific information on configuration options. Regardless of which temperature configuration is used, the host processor can request the current battery temperature by reading the Temperature(), and for internal temperature, InternalTemperature().
The external thermistor circuit requires the use of an 10K NTC 103AT-type thermistor.