Li-Ion battery monitoring and balancing IC The TLE9009DQU is a multi-channel battery monitoring and balancing IC crafted for Li-Ion battery packs in automotive (MHEV, HEV, PHEV, BEV), industrial (ESS), and consumer applications (e-bike BMS, home energy storage). It handles cell voltage and temperature measurement, cell balancing, and isolated communication to the main battery controller. Moreover, it includes essential diagnostic tools for safety assurance.