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.
Indeed, 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).
New highly-integrated solution for your Automotive BMS design
ST's Battery Management System solution for automotive applications is specifically conceived to meet all these demanding design requirements.
Based on the new highly-integrated Battery Management IC L9963 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 MCU Chorus 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.
Battery Management System (BMS) block diagram
Automotive Analog and Power
|L5150CJ||5V Low drop voltage regulator|
|L5300GJ||Standard Functions, Voltage Regulators|
|L9616||High Speed Can Bus Transceiver|
|L9963||ASSP Battery Management System|
|L99PM62GXP||Power Management IC with LIN and high speed CAN|
|L99PM72GXP||Advanced power management system IC with embedded LIN and high speed CAN transceiver supporting CAN Partial Networking|
|VN7E010AJ||High-side driver with MultiSense analog feedback for automotive applications|
|VND7140AJ||Double channel high-side driver with MultiSense analog feedback|
|VNQ7050AJ||Quad-channel HSD with analog current sense|
|VNQ7140AJ||Quad channel high-side driver with MultiSense analog feedback for automotive applications|
|SPC570S40E1||32-bit Power Architecture MCU for Automotive Chassis and Safety Applications|
|SPC572L64E3||32-bit Power Architecture MCU for Automotive Powertrain Applications|
|SPC582B60E1||32-bit Power Architecture MCU for Automotive General Purpose Applications - Chorus family|
|SPC584B60E1||32-bit Power Architecture MCU for Automotive General Purpose Applications - Chorus family|
|SPC58NE84E7||32-bit Power Architecture MCU for High Performance Applications|
|SPC58NG80E5||32-bit Power Architecture MCU for Automotive General Purpose Applications - Chorus family|
Diodes and Rectifiers
|STPS15H100C-Y||Automotive 100 V, 15 A dual Power Schottky Rectifier|
|STTH1602C-Y||Automotive 200 V, 16 A dual Ultrafast Diode|
|M24M01-A125||Automotive 1-Mbit serial I2C bus EEPROM with 1 MHz clock|
|ESDCAN01-2BLY||Automotive dual-line TVS in SOT23-3L for CAN bus (12 V system)|
|ESDLIN1524BJ||Transil™, transient voltage surge suppressor diode for ESD protection|
|LDP01-26AY||Automotive TVS for load dump protection|
|SM4TY||Automotive 400 W TVS in SMA|