1-s to 16-s Impedance Track™ fuel gauge | battery gas gauge
Product details
Parameters
Package | Pins | Size
Features
- Supports Li-Ion and LiFePO4 Chemistries
- Capacity Estimation Using Patented Impedance Track Technology
for Batteries from 3 V to 65 V- Aging Compensation
- Self-Discharge Compensation
- Supports Battery Capacities Above 65 Ahr
- Supports Charge and Discharge Currents Above 32 A
- External NTC Thermistor Support
- Supports Two-Wire I2C and HDQ Single-Wire Communication
Interfaces with Host System - SHA-1/HMAC Authentication
- One- or Four-LED Direct Display Control
- Five-LED and Higher Display Through Port Expander
- Reduced Power Modes (Typical Battery Pack Operating Range Conditions)
- Normal Operation: < 140 µA Average
- Sleep: < 64 µA Average
- Full Sleep: < 19 µA Average
- Package: 14-Pin TSSOP
Description
The Texas Instruments bq34z100 is a fuel gauge solution that works independently of battery series-cell configurations, and supports a wide range of Li-Ion and LiFePO4 battery chemistries. Batteries from 3 V to 65 V can be supported through an external voltage translation circuit that can be controlled automatically to reduce system power consumption.
The bq34z100 device provides several interface options, including an I2C slave, an HDQ slave, one or four direct LEDs, and an Alert output pin. Additionally, the bq34z100 provides support for an external port expander for more than four LEDs.
Exact equivalent in functionality and parametrics to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | Wide Range Fuel Gauge with Impedance Track™ Technology datasheet (Rev. B) | Dec. 07, 2012 |
* | Errata | bq34z100 Errata | Jan. 29, 2013 |
User guide | bq34z100EVM Wide Range Impedance Track Enabled Battery Fuel Gauge (Rev. B) | Apr. 16, 2021 | |
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 | |
Technical article | How to choose a multicell gauge | Dec. 16, 2016 | |
Technical article | What’s next for inverter power back-up systems? | Jul. 04, 2014 | |
Technical article | Giving More Life to LiFePO4 Batteries | Sep. 13, 2013 | |
Application note | Configuring the bq34z100 Data Flash | Nov. 13, 2012 | |
Application note | Going to Production with bq34z1XX | Nov. 13, 2012 |
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 (bq34z100EVM) is a complete evaluation system for the bq34z100 wide range fuel gauge for lithium ion chemistries when combined with an EV2400 USB adapter and Windows™-based PC software downloadable from the TI.com website. The circuit module includes one bq34z100 (...)
Features
- Complete evaluation system for the bq34z100 advanced gas gauge with Impedance Track™ technology
- Populated circuit module for quick setup
- Link to software allowing data logging for system analysis
Software development
Design tools & simulation
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TSSOP (PW) | 14 | 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
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