Intelligent, ultra-robust BMS for high-energy battery packs

Advanced BMS for 4 to 10-cell battery packs

Empowering next-gen high-energy battery packs

Empowering next-gen high-energy battery packs

Modern battery designs demand intelligence, safety, and longevity. As industries shift to high-density Li-ion and Li-polymer packs for e-mobility, power tools, and industrial equipment, the BMS becomes the heart of the system. To succeed, engineering teams must deploy architectures that maximize pack lifespan and ensure hardware survives from day one of assembly. Here’s how the L9962 addresses critical design challenges and helps your project achieve market-leading reliability.

Why standard BMS fail - and how the L9962 delivers

Storage and energy efficiency

  • Constraint: extended storage can cause high parasitic drain, reducing the cell state of charge.
  • L9962: drops to 2 µA in Deep Sleep mode and 2.5 µA in standby, maximizing total shelf life.

Hot-plug robustness

  • Constraint: production line voltage transients cause critical electrical overstress.
  • The L9962: features native hardware immunity, eliminating the need for external protection networks.
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BOM and layout optimization

  • Constraint: discrete balancing and sensing circuits increase costs and consume valuable PCB space.
  • L9962: integrates a 12-bit ADC, 70 mA internal balancing, and NTC into a single compact chip.
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Key applications: One versatile IC, built for high-demand professional ecosystems

Light E-mobility

Light E-mobility

  • E-bikes
  • Electric scooters
  • Drones
  • Smart last-mile delivery vehicles.
Professional tools

Professional tools

  • High-energy industrial drills
  • Drivers
  • Heavy-duty outdoor power equipment.
Portable power & backup systems

Portable power and backup systems

  • Modular battery packs
  • Compact energy storage systems.

Accelerate with MathWorks model-based design

Our collaboration with MathWorks streamlines BMS design by integrating ST’s ecosystem directly into your model-based design environment. You can define control logic within Simulink, generate optimized C-code for STM32 MCUs, and perform real-time validation via HIL.

 

To put this into practice, leverage our HIL Development Kit that combines our L9962 evaluation board (EVL9962) with the STM32G071RB Nucleo-64 development board (NUCLEO-G071RB) to create a robust, production-ready environment for rapid firmware deployment and HIL testing.

Don't start from scratch. Evaluate and deploy in hours.

We provide a complete, production-ready software and documentation ecosystem to seamlessly guide you from hardware evaluation to firmware deployment:

STSW-L9962GUI

Software GUI for L9962 evaluation board

  • The official Graphical User Interface to easily monitor cell data and configure device registers directly from your PC

UM3605

How to use the L9962 PC software GUI for L9962 based evaluation

  • A comprehensive step-by-step manual to get your hardware Demo Tool running instantly
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UM3606

Firmware device driver manual

  • Detailed driver documentation to integrate the L9962 with your microcontoller without wasting weeks writing low-level registry code.
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On-demand webinar

Maximizing battery performance for automotive and industrial applications.