The bq35100 Battery Fuel Gauge and End-Of-Service Monitor provides
highly configurable fuel gauging for non-rechargeable lithium primary batteries—without requiring
forced discharge of the battery. Built so that optimization is not necessary, the patented TI
gauging algorithms support replaceable batteries and enable accurate results with ultra-low average
power consumption through host control via the GAUGE ENABLE (GE) pin.
The fuel gauging functions use voltage, current, and temperature
information to provide State-Of-Health (SOH) and End-Of-Service (EOS) data. The bq35100 device is
only required to be powered long enough to gather data and to make calculations to support the
selected algorithm and the frequency of updates required by the system.
The host can read the gathered data through a 400-kHz
I2C bus. An ALERT output is also available to
interrupt the host, based on a variety of configurable options.
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