The Texas Instruments bq27425-G2 fuel gauge is an easy-to-configure microcontroller
peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device
requires minimal user configuration and system microcontroller firmware development.
The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and
provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery
Battery fuel gauging with the bq27425-G2 fuel gauge requires connections only to PACK+
(P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The 15-pin, 2.69 mm ×
1.75 mm, 0.5-mm pitch chip scale package (DSBGA) is ideal for space-constrained applications.
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