EVL9962 EVL9962 Board based on 10-cells IC BMS

The IC board integrates the L9962 BMS device, a complete battery pack monitoring, balancing, and protection system for Li-Ion and Li-Polymer cells in 4-10 series configurations. The L9962 evaluation kit consists of an expansion board containing the L9962 IC for battery pack monitoring solutions, along with an emulation board and the NUCLEO-G071RB STM32 Nucleo-64 development board. The expansion board is specifically designed to stack on the NUCLEO-G071RB development board using ST morpho connectors. Equipped with a high-precision ADC, the device continuously measures individual cell voltages, total stack voltage, and temperature via an external NTC sensor. These voltage measurements are performed cyclically with a configurable timing loop. Current sensing is handled by a highly accurate current sense amplifier (CSA), which operates continuously and supports Coulomb counting for precise tracking of battery charge and discharge. Cell balancing functionality is included, allowing a maximum balancing current of 70 mA