Complete battery pack monitoring, balancing, and protection system
Improve industrial BMS performance
Boost battery lifetime and safety in industrial and consumer applications
Boost battery lifetime and safety in industrial and consumer applications
By integrating a high-precision 12-bit ADC, the L9961 monitors individual cell voltages, stack voltage and cell temperature. A dedicated 16-bit high-accuracy current-sense amplifier (CSA) monitors battery stack current, enabling state-of-charge (SOC)/state-of-health (SOH) estimation via the internal Coulomb counter. Integrated MOSFETs allow balancing of individual cells, while advanced diagnostics and embedded fuse driver complete the comprehensive protection capabilities of the IC.
Cordless power tools
Small appliances
Medical appliances
Drones
Advantages of using our L9961 solution
The L9961 comes with a complete development ecosystem designed to reduce design times and simplify implementation. From evaluation boards to ready-to-use software packages, we provide everything you need to get started quickly and efficiently.
L9961: chip for industrial battery management applications up to 5 cells
STEVAL-L99615C: expansion kit with L9961 board and STM32G0 Nucleo-64 development board
Complete development support
Software GUI for L9961 evaluation board
Ready-to-use GUI showing L9961 device performance
- Cell monitoring
- Coulomb counter
- Switch control
- Diagnostics
Software package for L9961 industrial BMS
Software package with standalone firmware driver and application examples
- Coulomb counting mechanism for SOC estimation
- 5-cell voltage, current, temperature and stack voltage monitoring
- Applications examples
- Passive battery cell balancing for cell energy equalization