STMicroelectronics STEVAL-BMS114TX BMS Evaluation Board

STMicroelectronics STEVAL-BMS114TX Battery Management System (BMS) Evaluation Board operates from 4 to 14 battery cells. The board uses the embedded transceiver to ensure an isolated connection to an external MCU. Based on the L99BM114 Li-ion battery monitoring and protection chip, the board facilitates high-reliability applications and the L99BM1T general-purpose SPI to isolated SPI bidirectional transceiver. The L99BM114 monitors cells and battery node status via stack voltage measurement, cell voltage measurement, temperature measurement, and coulomb counting.

The STMicroelectronics STEVAL-BMS114TX supplies an elaborate monitoring network to sense the voltage of each cell and the current of the entire battery pack.

Features

Hosts the L99BM114 multicell battery monitoring and balancing IC
Hosts the L99BM1T general purpose SPI to isolated SPI bidirectional transceiver
Voltage monitoring of every single cell and of the entire battery node
Current sensing of the entire battery node

5 GPIOs to connect temperature sensors as NTCs
CN1 connector that allows establishing communication with an MCU board via SPI
CN2 connector that interfaces directly to an MCU board for control and diagnostic functions
Passive balancing
100mm x 76mm compact size