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2025/04/25
Powering the Future of Charge with Advanced BMS Solutions
Powering the Future of Charge with Advanced BMS Solutions
In a world where the demand for electric vehicles is only climbing, the most important component of a functional EV is the battery and making the battery last as long as possible is the number one priority of many companies. Named one of Clarivate’s Top 100 Global Innovators of 2025, STMicroelectronics offers a comprehensive suite of automotive-grade solutions designed to balance performance, safety, and long-term sustainability in modern electric powertrains.
Precision Powertrain Control for Hybrid Platforms
The SPC56/57 automotive microcontrollers, paired with the L9177A engine control IC, provide highly accurate control over fuel injection, spark ignition, and exhaust after-treatment—key functions in achieving compliance with today’s stringent emissions standards. This high-integration solution is ideal for hybrid vehicles, helping OEMs bridge high performance with environmental responsibility while accelerating the electrification of conventional powertrains.
Smarter Battery Management for Safer, Longer-Lasting EVs
ST’s Battery Management System (BMS), centered around the L9963E battery monitoring and balancing IC and the L9963T isolated transceiver, is built for advanced safety and efficiency. Combined with ST’s 32-bit MCUs, power management ICs, VIPower smart switches, protection devices, and EEPROMs, this ASIL-compliant platform provides:
- Battery Protection – Real-time monitoring of voltage, current, and temperature prevents overcharge, over-discharge, and overheating.
- 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). Keeps the battery charge level consistent by allocating spare cells in accordance with the battery's longevity.
By supporting up to 14 battery cells and scalable daisy-chain communication, the L9963E also enables flexible implementation in high-voltage battery systems (48V and above), while delivering low-EMI, long-distance, and reliable data transfer via transformer-isolated interfaces.
High-Efficiency Traction Inverters: Unlocking Full Motor Performance
The traction inverter converts energy from the battery to drive motors in the drivetrain. This impacts the vehicles road performance, driving range, and reliability. Key factors include the inverter's weight and size. Inverters need to be able to handle the intense heat and vibration that they are subject to due to the automotive environment. Some energy is lost during the exchange. A more efficient traction inverter means more of the battery charge is usable. To help OEMs and system integrators design lighter, smaller, and more efficient inverters, ST offers a complete portfolio including:
- AEC-Q101 qualified IGBTs and silicon / SiC MOSFETs & diodes
- AEC-Q100 certified isolated gate drivers
- SPC5 32-bit automotive-grade MCUs for real-time control and diagnostics
These components enable system developers to reduce thermal losses, improve power density, and support modular inverter designs for faster development and deployment.
Driving the Electrification Shift with Scalable, Sustainable Solutions
From intelligent battery management to high-performance motor control, STMicroelectronics delivers highly reliable, automotive-grade solutions and ecosystem support that help OEMs bring competitive, next-generation EVs to market faster and more efficiently. Whether it's two-wheelers, passenger EVs, or high-voltage eMobility platforms, ST offers a stable BOM, proven technology, and full lifecycle technical support—powering the path to smarter, safer, and more sustainable mobility.
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L9177A - Automotive engine management control IC
STMicroelectronicsTheL9177A is a power and signal interface IC built on ST’s proprietary BCD technology, designed for controlling 2-cylinder internal combustion engines in low-end applications such as small motorcycles, K-cars, and nautical engines. It integrates a 5V/300mA main regulator, a 5V/40mA tracking regulator for sensors, and a 5V/2.5mA standby regulator.
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SPC582B60E1 - Automotive 32-bit power architecture MCU
STMicroelectronicsSPC582Bxis built on the legacy of the SPC5x products, while introducing new features to answer the future requirements like the ASIL-B classification, high number of ISO CAN-FD channels, and provide significant power and performance improvement(MIPS per mW).
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L9963E - Li-ion battery monitoring and protecting chip
STMicroelectronicsThe L9963E is a Li-ion battery monitoring and protection IC for automotive and energy storage systems, supporting up to 14 cells and 7 NTCs. It offers high-accuracy voltage and current sensing with on-chip coulomb counting, and communicates via SPI or isolated interfaces. Multiple devices can be daisy-chained for long-distance, low-EMI, and reliable data transfer.
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IMX728 - Automotive CMOS Image Sensor Solution
SonyThe IMX728 image sensor for automotive utilizes technologies such as high dynamic range (HDR) imaging and LED flicker mitigation (LFM／LED Flicker Mitigation) to realize performance for the stable acquisition of high definition images in various automobile travel situations.
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