Single cell Li-ion battery fuel gauge for battery pack Integration
Product details
Parameters
Package | Pins | Size
Features
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Microcontroller Peripheral Provides:
- Accurate Battery Fuel Gauging
- Internal Temperature Sensor for System Temperature Reporting
- SHA-1/HMAC Authentication
- 96 Bytes of Non-Volatile Scratch Pad FLASH
- Battery Fuel Gauging Based on Patented Impedance Track™ Technology
- Models Battery Discharge Curve for Accurate Time-To-Empty Predictions
- Automatically Adjusts for Battery Aging, Battery Self-Discharge, and
Temperature/Rate Inefficiencies - Low-Value Sense Resistor (5 m
to 20 m
)
- HDQ and I2C™ Interface Formats for Communication with Host System
- Small 12-pin 2,5 mm × 4 mm SON Package
- APPLICATIONS
- Smartphones
- PDAs
- Digital Still and Video Cameras
- Handheld Terminals
- MP3 or Multimedia Players
Impedance Track is a trademark of Texas Instruments.
I2C is a trademark of Phillips Corporation.
Description
The Texas Instruments bq27541 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 for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the system’s main-board with an embedded battery (nonremovable).
The bq27541 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), and temperature (°C).
The bq27541 also features integrated support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This evaluation module (EVM) is a complete evaluation system for the bq27541. The EVM includes one bq27541 circuit module, a current sense resistor, one thermistor, an EV2300 personal computer (PC) interface board for gas gauge interface, a PC USB cable, and Windows™-based PC software. The (...)
Features
- Complete evaluation system for the bq27541 gas gauge with Impedance Track™ Technology
- Populated circuit module for quick setup
- PC software and interface board for easy evaluation
- Software that allows data logging for system analysis
Software development
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
(...)
Design tools & simulation
The Battery Management Studio (bqStudio) chemistry update zip file contains data used by bqStudio for selecting the (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SON (DRZ) | 12 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.