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USA: TI introduces first multi-cell, multi-chemistry battery gas gauge for lithium batteries

Innovative power circuit with Impedance Track(TM) battery capacity technology supports Li-Ion and LiFePO4 chemistries; future gauges to support lead acid, NiCd and NiMH

DALLAS, July 2, 2012 /PRNewswire via COMTEX/ — Texas Instruments Incorporated (TI) TXN -1.46% today introduced the first in a family of multi-chemistry, multi-cell battery management gas gauge circuits with TI’s proprietary Impedance Track(TM) capacity measurement technology. The bq34z100 power management chip is the first gas gauge in the industry to support a wide range of lithium-ion and lithium iron phosphate chemistries in 2- to 16-cell battery packs, extending battery run-time in applications like medical instruments, power tools, e-bikes and uninterruptible power supplies (UPS). TI also plans to introduce new gauges this year to support lead acid, nickel cadmium and nickel metal hydride chemistries. For more information, samples and evaluation module, visit: .

Highest degree of capacity measurementToday’s multi-cell lithium battery designs in portable industrial and medical equipment need a more accurate way to measure remaining battery capacity. The bq34z100 battery gauge leverages Impedance Track technology, which uses charge voltage measurements, battery characteristics and properties to determine a battery’s state-of-health and maintain up to a 94-percent accurate capacity measurement for the entire life of the battery. The circuit also works independently of series-cell configuration, and can reduce power consumption through an external voltage translation circuit.

Key features and benefits of the bq34z100:

First multi-cell gauge to support Li-Ion and LiFePO4 battery chemistries, with future versions supporting lead acid, NiCd and NiMH.

Highly accurate battery capacity measurement with TI’s Impedance Track proprietary algorithm.

Tools to speed the design include bq34z100EVM evaluation module, software and MathCAD chemistry selection tool.

Availability and pricingThe bq34z100 multi-chemistry fuel gauge for lithium-based batteries is available now in a 14-pin, 5-mm x 6-mm TSSOP package, priced at $2.10 in quantities of 1,000. TI’s new bq34z110 battery gauge for lead acid batteries is planned for release in the third quarter. A new gauge for NiCd and NiMH is planned for announcement later this year.

Find out more about TI’s battery management portfolio:

Review TI’s entire battery management portfolio for industrial applications: .

Ask questions and help solve problems in the Battery Forum in the TI E2E(TM) Community: .

Download TI’s Battery Management Solutions Guide: .

About Texas InstrumentsTexas Instruments semiconductor innovations help 90,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at .

TrademarksTI E2E and Impedance Track are trademarks of Texas Instruments. All registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated


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