Other Parts Discussed in Thread: GPCCEDV
customer investigating BQ34110.
This is a +/-32767 mA high-current device, and its best current measurement is down to 1 mA. The default deadband for BQ34110 is +/-5 mA (it’s configurable though, down to 1 mA).
This current resolution may be sufficient when their design is in full operating mode (their current consumption is very low, in the 25 mA to 100 mA range) but they the device in sleep modes as well, with currents in the 200 uA to 500 uA range. To accurately predict the battery status/life, they need to be able to measure the sleep currents too.
Question #1: Would they be able to change the Sensing resistor value and perform a new current calibration to get better current accuracy, or will that just mess up the internal/default calibration algorithm? Any suggestions? If not doable, does TI offer a device similar to BQ34110 that can support/measure lower currents?
Question #2: Also, Battery Management Studio seems to support Zn/MnO2 alkaline batteries under the 0600 Chemical ID code… Just wanted confirmation that this ID will work with BQ34110 device.
Please advise.
