TI Korea (CEO Kent Chon, www.ti.com/ww/kr ) April 22, 2013 – TI (CEO Kent Chon) has launched the first lead-acid battery management gas gauge IC integrating TI’s proprietary Impedance Track™ capacitance measurement technology. Available in a small 14-pin package, the bq34z110 gas gauge IC is the industry's only scalable power management device that supports multi-cell lead-acid battery packs providing battery voltages of 6V, 12V, 24V, 48V, and higher. Offering high accuracy and ease of use, the bq34z110 supports batteries used in mobile and stationary applications, such as medical devices, wireless base stations, telecom shelters, electric bicycles, inverters, and UPS (uninterruptible power supplies). (For sample orders, please refer to www.ti.com/bq34z110-pr )

Provides 95% monitoring accuracy for lead-acid batteries
Lead-acid batteries offer superior operating characteristics compared to lithium batteries across a wide temperature range. However, existing current lead-acid designs are unable to accurately measure and report battery capacity. This causes confusion for most end users, and sometimes requires the addition of more batteries to maintain the system at an appropriate charge level. The bq34z110 gauge, utilizing impedance track technology, regularly provides users with information on the battery's state-of-health and state-of-charge status and maintains capacity measurements with up to 95% accuracy throughout the battery's entire lifespan. This prevents premature shutdown, thereby extending the lifespan of the battery and the finished product.

Key Features and Advantages of bq34z110
• The industry's first multi-cell battery gauge supporting a wide range of lead-acid batteries (4V to 64V), including high-capacity batteries (1Ahr to over 65Ahr) and high-current applications (0A to over 32A).
• Achieved 95% accuracy in battery capacity measurement through an impedance track algorithm that determines the battery's state of charge, performance status, and capacity based on current and voltage measurements, temperature, and battery characteristics.
• Supports easy setup configuration through application notes, user guides, and the bq34z110EVM evaluation module

Battery management available for all battery chemistry
TI provides battery charge management and capacity monitoring ICs that meet all power requirements, ranging from the smallest coin cells to the largest multi-cell battery packs. In addition to the bq34z110 gas gauge, TI's 10A bq24650 and bq24450 charging ICs support battery charge management functions for multi-cell lead-acid batteries. In addition to this, TI has released the bq34z100, a lithium-based multi-chemistry multi-cell battery gas gauge that supports a wide range of lithium-ion and lithium iron phosphate chemistry technologies for 1 to 16 cell batteries.

TI's Industrial Analog
TI is a leading provider of a significant portion of the industrial semiconductor market, offering a diverse portfolio of analog ICs for a wide range of applications including smart grids, factory automation, high-voltage power, LED lighting, and control. TI’s data converters, amplifiers, interfaces, isolation, clocking, and power management devices support customers in differentiating their products, while TI’s software, design tools, and reference designs enable the simplification and acceleration of design cycles. You can learn how TI’s analog products improve industrial safety, efficiency, and reliability at www.ti.com/industrial-pr .

Supply timing and price
The bq34z110 fuel gauge for lead-acid batteries is available in a 14-pin 5mm x 6mm TSSOP package for $2.30 per unit in 1,000-unit quantities. The bq34z110 EVM is available for purchase through the TI eStore for $49.