TI claims breakthrough battery monitoring technology for lead-acid batteries

TI claims breakthrough battery monitoring technology for lead-acid batteries
Technology News |
Texas Instruments Incorporated has introduced the first lead-acid battery management gas gauge integrated circuit with TI’s proprietary Impedance Track capacity measurement technology for lead acid batteries.
By eeNews Europe


The bq34z110 gas gauge IC, which comes in a small 14-pin package, claims to be the industry’s only scalable power management device to support multi-cell lead-acid battery packs with battery voltages of 4 V, 12 V, 24 V, 48 V and higher. The highly accurate, simple-to-use gauge supports batteries used in mobile and stationary applications like medical instruments, wireless base stations and telecom shelters, e-bikes, inverters  and uninterruptible power supplies (UPS).

Lead-acid batteries typically behave better than lithium chemistries in environments with wide temperature ranges. However, today’s lead-acid battery designs do not accurately measure and report current battery capacity, which often frustrates the end user, and could mean adding more batteries to keep the system adequately charged. The new bq34z110 gauge with Impedance Track technology constantly informs a user about the battery’s state-of-health and state-of-charge and maintains up to a 95-percent accurate capacity measurement for the entire life of the battery. This information also prevents premature shutdown, increasing the longevity of the battery and end-equipment.

The bq34z110 is the industry’s first multi-cell scalable battery gauge to support a wide range of lead acid batteries (4 V to 64 V), including large capacity batteries (1 Ahr to 65 Ahr and higher) and high-current applications (0 A to 32 A and higher).

The device enables 95-percent accurate battery capacity measurement with TI’s Impedance Track proprietary algorithm, which uses current, voltage measurements, temperature and battery characteristics to determine battery state-of-charge, state-of-health and capacity.

The IC is easy to setup with application notes, user guide and bq34z110EVM evaluation module.

Availability and Pricing

The bq34z110 fuel gauge for lead acid-based batteries is available now in a 14-pin, 5-mm x 6-mm TSSOP package, priced at $2.30 in quantities of 1,000. The bq34z110EVM is available through TI eStore for $49.

More information about lead-acid battery management gas gauge integrated circuit at www.ti.com/bq34z110-pr-eu

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