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Automotive battery management system (BMS)

Automotive Battery Management Systems (BMS) must be able to meet critical features such as voltage, temperature and current monitoring, battery state of charge (SoC) and cell balancing of lithium-ion (Li-ion) batteries.

Highly-integrated solution for your Automotive BMS design

Highly-integrated solution for your Automotive BMS design

ST's Battery Management System solution for automotive applications is specifically conceived to meet demanding design requirements.

Based on the new highly-integrated Battery Management IC L9963E and its companion isolated transceiver L9963T, our solution is able to provide the highest accuracy measurements of up to 14 cells in series, on mono or bi-directional daisy-chain configuration, embedding sophisticated cell monitoring & diagnostic features. It also meets the stringent Automotive Safety Integrity Level (ASIL) D compliance.

Together with our 32-bit Automotive MCU family, Power Management & System Basis ICs, VIPower Smart Switches, a wide offer of Protection Devices and automotive EEPROM for datalog, ST comes with a comprehensive and flexible solution to support your automotive-grade Battery Management System design.

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What are the main functions of a BMS?

What are the main functions of a BMS?

The main functions of a Battery Management System for electric vehicles are:

  • Battery protection in order to prevent operations outside its safe operating area.
  • Battery monitoring by estimating the battery pack state of charge (SoC) and state of health (SoH) during charging and discharging.
  • Battery optimization thanks to cell balancing that improves the battery life and capacity, thus optimizing the driving range for hybrid (HEV), plug-in (PHEV) and full electric vehicles (BEV).

All Hardware Evaluation Tools

    • Part Number
      Description
      Core product
      Tool Type
      Supplier
      Sort by: part number

      AEK-COM-ISOSPI1

      Active

      SPI to isolated SPI dongle based on the L9963T transceiver

      L9963T Transportation ST
      AEK-COM-ISOSPI1
      Active

      SPI to isolated SPI dongle based on the L9963T transceiver

      AEK-MCU-SPC5LNK

      Active

      Programmer and debugger for SPC5 automotive microcontrollers

      - Automotive IC Eval Boards ST
      AEK-MCU-SPC5LNK
      Active

      Programmer and debugger for SPC5 automotive microcontrollers

      AEK-POW-BMS63EN

      Active

      Battery management system module based on L9963E

      L9963E Transportation ST
      AEK-POW-BMS63EN
      Active

      Battery management system module based on L9963E

      AEK-POW-BMSHOLD

      Active

      Battery holder for cylindrical batteries and battery management system node for automotive applications

      L9963E Transportation -
      AEK-POW-BMSHOLD
      Active

      Battery holder for cylindrical batteries and battery management system node for automotive applications

      AEK-POW-BMSNOTX

      Active

      Non-isolated Battery Management node dedicated to auxiliar battery packs able to directly connect the MCU via standard SPI protocol

      L9963E Transportation ST
      AEK-POW-BMSNOTX
      Active

      Non-isolated Battery Management node dedicated to auxiliar battery packs able to directly connect the MCU via standard SPI protocol

      EVAL-L9963E-MCU

      NRND

      L9963E Evaluation Board with on board MCU with preloaded firmware (GUI)

      L9963E Automotive IC Eval Boards ST
      EVAL-L9963E-MCU
      NRND

      L9963E Evaluation Board with on board MCU with preloaded firmware (GUI)

Picture Solution
Battery Management System (BMS) Solution
Battery Management System (BMS) Solution II
Battery Management System (BMS) Solution
Battery Management System (BMS) Solution II
Overcoming design challenges for battery management systems