The Texas Instruments bq27742-G1 is a fuel gauge for single-cell Li-Ion battery packs that uses patented Impedance Track™ technology to deliver rate-, temperature-, and aging-compensated predictions of remaining battery capacity and system runtime with highest accuracy. The device also includes a fully integrated high-side protector that eliminates the need for a separate Li-Ion protection circuit and provides a full suite of high-accuracy fault detections for overvoltage, undervoltage, overcurrent in charge, overcurrent in discharge, and short-circuit in discharge conditions. The hardware protection functions offer built-in data flash-based programmability, allowing simple reconfiguration of existing devices for varying end equipment needs.
The fuel gauge provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime to empty (minutes), voltage (mV), current (mA), and temperature (°C), as well as recording vital parameters throughout the lifetime of the battery. The device also supports interrupts to the host to indicate detection of a variety of important battery conditions to the system.
The DSBGA is a 15-ball package (2.78 mm × 1.96 mm) that is ideal for space-constrained applications.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | bq27742-G1 Single-Cell Li-Ion Battery Fuel Gauge with Programmable Hardware Protection datasheet (Rev. D) | PDF | HTML | Jan 16, 2018 |
| User guide | bq27742-G1 Single-Cell Impedance Track™ Battery Fuel Gauge TRM (Rev. C) | Jul 20, 2015 | ||
| EVM User's guide | bq27742EVM Single-Cell Impedance Track™ Technology Evaluation Module | Jan 31, 2014 |
For additional terms or required resources, click any title below to view the detail page where available.
The BQ27742EVM along with Battery Management Studio software provide the customer with tools for developing a battery fuel gauge module for placement inside a lithium-based battery pack. Customers are able to configure the BQ27742EVM so that it can provide accurate battery fuel gauging (...)
The EV2400 EVM interface board enables an IBM-compatible or other type PC (with the required driver for its particular platform) to communicate with the Texas Instruments SMBus or I2C interface gas gauges via a Universal Serial Bus (USB) port. In addition to this board, PC software is required to (...)
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 (...)
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 (...)
GPC Chemistry ID matching for Impedance Track (IT) algorithm gas gauges (Find closest chemistry match) must be done before Optimizing room temperature or low temperature performance.
Gauging Parameter Calculator Chemistry ID matching for Impedance track gas gauges (GPCCHEM) is a math calculation (...)
Gauging Parameter Calculator – Optimize room temperature performance for Impedance track gas gauges (GPCRA0) / Golden GG Maker is a math calculation tool that helps the battery designer to refine the Impedance Track battery gauge parameters for a given battery profile. It provides optimized (...)
The Linux driver supports the BQ27x series of Battery Fuel Gauges. The Linux driver supports communication through the I2C/HDQ bus and interfaces with the power supply sub-system to monitor battery properties.
Available in Linux Main line: Yes
Available through git.ti.com: N/A
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)
BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)
This reference design, using BQ27741 along with GaugeStudio software, provides the customer with tools for developing a battery fuel gauge module for placement inside a lithium-based battery pack. Customers are able to configure the solution so that it can provide accurate battery fuel gauging (...)
This reference design using bq27742 along with Battery Management Studio (Bqstudio) software provides the customer with tools for develpping a battery fuel gauge module for placement inside a lithium-based battery pack. Customers are able to configure the solution so that it can provide (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YZF) | 15 | Ultra Librarian |
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