Battery Management Solution
Application
Description
Complete battery management solution for lithium-ion battery packs including cell monitoring, balancing, and protection for portable and industrial battery systems.
Core Advantages
Recommended Bill of Materials (BOM)
| Item | Part Number | Description | Quantity | Datasheet |
|---|---|---|---|---|
| 1 | RS8551 | Precision op-amp for current sensing | 1 | 📄 Download |
| 2 | RS1240 | 16-bit ADC for voltage measurement | 1 | 📄 Download |
| 3 | RS6220 | Precision voltage reference | 1 | 📄 Download |
| 4 | RS7118 | Low-noise LDO for analog power | 1 | 📄 Download |
Applications
Technical Specifications
Customer Success Stories
E-mobility Startup
Electric Vehicles | E-scooter Battery Pack
Challenge
Design compact, cost-effective BMS for 36V 10Ah lithium battery pack with accurate SOC reporting and cell balancing.
Solution
Implemented Runic-based BMS with RS8551 for current sensing, RS1240 for voltage monitoring, and integrated passive balancing.
Results
Achieved ±2% SOC accuracy. Balanced cells maintained within 10mV. System passed all safety certifications. Cost 30% lower than competing solutions.
FAE Expert Insights
Chen Wei
Power Management Applications Engineer
10 years
Professional Insights
Battery management systems require careful attention to measurement accuracy and safety protection for reliable operation.
Key Takeaways
- 1mV voltage accuracy enables precise SOC estimation
- Use Kelvin connections for current sensing
- Place temperature sensors near cells
- Implement multiple safety protection layers
- Regular balancing extends battery life
Decision Framework
Battery Management System Design
Steps:
- Define cell count and configuration
- Select appropriate monitoring accuracy
- Design current sensing with Kelvin connections
- Implement protection circuits
- Add balancing and temperature monitoring