Single-series cell li-ion battery fuel gauge resides on system board
- Integrated 2.5-VDC LDO
- External low-value 10-mΩ sense resistor
Patented Impedance Track™ technology
- Adjusts for battery aging, self-discharge, temperature, and rate changes
- Reports remaining capacity, state-of-Charge (SOC), and time-to-empty
  - Optional smoothing filter
- Battery state-of-health (aging) estimation
- Supports embedded or removable packs with up to 32-Ah capacity
  - Accommodates pack swapping with 2 separate battery profiles
Microcontroller Peripheral Supports:
- 400-kHz I²C serial interface
- 32 bytes of scratch-pad FLASH NVM
- Battery low digital output warning
- Configurable SOC interrupts
- External thermistor, internal sensor, or host-reported temperature options
Small 12-pin 2.50 mm × 4.00 mm SON package

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The Texas Instruments BQ27510-G3 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development. The BQ27510-G3 resides on the system’s main board and manages an embedded battery (non-removable) or a removable battery pack.

The BQ27510-G3 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information, such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), temperature (°C) and state-of-health (%).

Battery fuel gauging with the BQ27510-G3 requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit.

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Technical documentation

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	Type	Title	Date
*	Data sheet	BQ27510-G3 System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection datasheet (Rev. B)	Mar. 31, 2020
*	User guide	System Side Impedance Track™ Fuel Gauge With Integrated LDO Technical Reference	Oct. 08, 2014
	Application note	Achieving The Successful Learning Cycle	Jun. 19, 2018
	Application note	Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A)	Jun. 05, 2018
	Application note	Enhanced Resolution Gauging for Low Current Applications Using Scaling	Oct. 26, 2016
	Application note	Host System Calibration Method (Rev. B)	May 19, 2016
	Technical article	Where’s the gauge? Part 3	Feb. 11, 2015
	Application note	Going to Production With the bq275xx (Rev. F)	Oct. 09, 2014
	Application note	Using I2C Communication With the bq275xx Series of Fuel Gauges (Rev. B)	May 15, 2014
	User guide	User's Guide for Fuel Tank BoosterPack	Jan. 16, 2014
	Application note	bq27510-G2 to bq27510-G3 Change List	Jun. 14, 2013
	Application note	Going to Production With the bq275xx (Rev. E)	Jan. 20, 2012
	Application note	Thermistor Selection Guide for Texas Instruments Advanced Fuel Gauges	Sep. 28, 2011
	Application note	How to Do Calibration and Create Golden DFI for Host Side Gas Gauge	Sep. 01, 2011
	Application note	WinCE/Linux Drivers for bq275xx Fuel Gauge	Mar. 17, 2011
	Application note	Updating bq275xx Firmware at Production (Rev. A)	Feb. 21, 2011
	Application note	How to Generate Golden Image for Single-Cell Impedance Track(TM) Devices	Jan. 07, 2010
	Application note	Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps	Mar. 11, 2009
	Application note	Feature Set Comparison of bq27x00, bq27x10, bq27500, and bq27510 (Rev. A)	Dec. 02, 2008
	Application note	Single Cell Gas Gauge Application Book	Jul. 28, 2008
	Application note	Impedance Track Fuel Gauge Accuracy Test for GSM Phone Applications	Mar. 21, 2008
	Application note	Single Cell Gas Gauge Circuit Design	Feb. 22, 2008
	Application note	Single Cell Impedance Track Printed-Circuit Board Layout	Feb. 22, 2008
	Application note	Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm	Jan. 31, 2008
	Application note	Host-Side Gas-Gauge-System Design Considerations for Single-Cell Handheld Apps	Oct. 12, 2007

Design & development

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Hardware development

EVALUATION BOARD Download

System-Side Single-Cell Impedance Track™ Technology Evaluation Module | Battery Fuel Gauge

BQ27510EVM

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User guide

Description

This evaluation module (BQ27510EVM) is a complete evaluation system for the bq27510. The EVM includes one bq27510 circuit module, a current sense resistor, and one thermistor. The circuit module includes one bq27510 integrated circuit and all other onboard components necessary to monitor and predict (...)

Features

Complete evaluation system for the bq27510 gas gauge with Impedance Track™ technology
Populated circuit module for quick setup
Software that allows data logging for system analysis

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Software development

APPLICATION SOFTWARE & FRAMEWORK Download

Battery Management Studio (bqStudio) Software

BQSTUDIO — Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

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