Texas Instruments Battery Monitor: New BQ79826Z-Q1 with EIS Technology for EVs and ESS - Electronics Media

Texas Instruments (TI) has introduced the BQ79826Z-Q1, a high-channel-count battery monitor with integrated electrochemical impedance spectroscopy (EIS) technology, aimed at enhancing safety and perfo... Read original →

TI’s BQ79826Z-Q1 marks a strategic pivot from reactive to predictive battery management. By embedding EIS, it achieves sub-2mV voltage accuracy and slashes BMS bill-of-materials by over 15% through reduced AFE redundancy. This forces upstream MCU vendors to co-develop impedance analytics and compels pack integrators to redesign thermal runaway protocols. While ASIL-D compliance strengthens safety credentials, evolving EU battery regulations and U.S. IRA localization mandates pressure TI to diversify assembly/test capacity beyond mainland China—particularly in Taiwan, China and Southeast Asia. Competitors like ADI and NXP, trailing in channel count, may counter by bundling SiC/GaN power stages with BMS ICs. Within 18 months, EIS will become standard in premium EVs and grid-scale ESS, spurring demand for dedicated analog front-end IP and accelerating adoption of sub-3nm BCD processes in power ICs.