Texas Instruments introduced a lead-acid battery management gas gauge integrated circuit with its proprietary Impedance Track capacity measurement technology. The bq34z110 gas gauge IC, which comes in a small 14-pin package, is said 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 accurate, simple-to-use gauge supports batteries used in mobile and stationary applications such as medical instruments, wireless base stations and telecom shelters, e-bikes, inverters and uninterruptible power supplies (UPS). It 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, according to the company. This information also prevents premature shutdown, increasing the longevity of the battery and end-equipment. 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 US$2.30 in quantities of 1,000.
Texas Instruments, www.ti.com 
Lead-acid battery, battery management, gas gauge integrated circuit, gas gauge IC, capacity measurement, power management, battery packs, impedance track