The TLE9012DQU from Infineon Technologies is a Li-ion Battery Monitoring and Balancing IC that is designed for Li-ion battery packs used in hybrid electric vehicles (HEV, plug-in hybrid electric vehicles (PHEV), battery electric vehicles (BEV), as well as in 12 V Li-ion batteries. It requires an input voltage of 4.75 - 60 V. This BMIC can monitor, communicate with, and control up to 12 serially connected cells. It includes a cell management unit, a round-robin diagnosis unit, an auxiliary/temperature and voltage measurement unit, a UART/GPIO block, an iso UART interface, and a power supply unit. This AEC-Q100-qualified BMIC uses a 16-bit high-resolution ADC per cell with a selectable measuring mode to conduct high accuracy and temperature-compensated measurements.  It connects 5 channels to an external NTC, thereby allowing it to measure the internal temperature of various blocks.

This ASIL-D-certified device includes a balancing switch and can handle balancing currents of up to 200 mA. It has a detector circuit that detects internal open-load conditions and diagnostic tools to ensure proper operation, ensuring the safety of those around the controlled battery. This RoHS-compliant BMIC is available in a surface-mount package that measures 9 x 9 mm.