We're excited to share our latest contribution to the open-source hardware community – a comprehensive PCB design template for Battery Management Systems (BMS) based on the TI BQ769x0 series. This KiCAD template serves as a reference implementation for various battery-powered applications, from UPS systems to e-bikes and power tools.
Our design prioritizes reliability and versatility, featuring enhanced thermal management, reinforced balancing circuits, and flexible power options. With support for 9-15 cell configurations, this template delivers professional-grade BMS capabilities while maintaining accessibility for makers and engineers.
Key Highlights:
⮞ Advanced thermal protection with hotspot monitoring and dual external sensor support
⮞ Optimized MOSFET selection supporting currents up to 50A
⮞ Flexible wake-up options via external trigger or local button
⮞ Built-in LDO for MCU power supply (up to 20mA)
⮞ Dedicated charger disable output for enhanced safety
⮞ Separate LDO input for BMS power supply with thermal fuse support
⮞ Reinforced heat distribution and balancing circuits
⮞ Full MIT license - free to use and modify
This template is designed to work seamlessly with popular microcontrollers like Arduino, making it perfect for rapid prototyping and custom implementations. Find the complete project files on our GitHub repository and start building your next battery management solution today!
https://github.com/YURBOM/Ki_BMS_bq769x0_universal_a_0