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 voltage (mV).
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.
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | bq27425-G2 System-Side Impedance Track Fuel Gauge With Integrated Sense Resistor datasheet (Rev. B) | 30 Jun 2015 |
| Application note | bq27425-G1 to bq27425-Gx Change List | 19 Oct 2012 | |
| Application note | Going to Production With the bq27425 | 23 Apr 2012 | |
| Application note | Single Cell Gas Gauge Circuit Design | 22 Feb 2008 | |
| Application note | Single Cell Impedance Track Printed-Circuit Board Layout | 22 Feb 2008 | |
| Application note | Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm | 31 Jan 2008 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| DSBGA (YZF) | 15 | View options |
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