SC2750
Multi-cell battery fuel gauge supporting 2-4 series cells with impedance tracking for accurate battery monitoring
Product Overview
Description
The SC2750 is a high-precision fuel gauge designed for multi-cell battery packs. It supports 2-4 series Li-ion cells and provides accurate state-of-charge and state-of-health monitoring using advanced impedance tracking technology.
The device features cell voltage monitoring, passive cell balancing, and comprehensive battery protection. It communicates with the host processor via I2C interface and provides detailed battery status information.
Integrated temperature monitoring and JEITA-compliant charging control ensure safe battery operation across the full temperature range.
Product Series
SC
Primary Application
Laptops
Key Features
- 2-4 series cell support
- Impedance tracking technology
- Cell balancing
- Temperature monitoring
- JEITA compliance
- I2C interface
- TSSOP-14 package
Specifications
| Battery Type | 2-4S Li-ion/Li-polymer |
|---|---|
| Voltage Accuracy | ±10mV per cell |
| Current Accuracy | ±1% |
| SOC Accuracy | 3-5% |
| Interface | I2C |
| Package | TSSOP-14 |
Applications
Laptops
Electronic system design
Power tools
Electronic system design
E-bikes
Electronic system design
Portable power stations
Electronic system design
FAE Expert Insights
"The SC2750 is an excellent choice for multi-cell applications. The cell balancing feature is crucial for multi-cell packs to ensure all cells maintain equal charge levels. The impedance tracking provides accurate gauging even as the battery ages. I've used this part in several laptop and power tool designs. The TSSOP package is easier to assemble than WLCSP alternatives. Key design considerations: use 1% sense resistors, implement proper Kelvin connections, and ensure good thermal design. The cell balancing current is relatively low (50mA), so it's suitable for applications with moderate balancing needs. For high-current balancing requirements, external balancing circuits may be needed. Overall, this is a cost-effective fuel gauge for multi-cell applications."
Multi-cell fuel gauge with balancing and impedance tracking for accurate monitoring
— Sarah Liu, BeiLuo
Frequently Asked Questions
How does cell balancing work in SC2750?
The SC2750 provides passive cell balancing by discharging cells with higher voltage through internal resistors. Balancing current is approximately 50mA. The fuel gauge monitors cell voltages and activates balancing when voltage differences exceed the threshold. This ensures all cells maintain similar charge levels for optimal pack performance.
Contact LiTong for cell balancing design and implementation guidance.
What is the maximum number of cells supported?
The SC2750 supports 2-4 series cells. It can be configured for 2S, 3S, or 4S configurations through register settings. The device provides individual cell voltage monitoring and balancing for all cells in the pack.
Contact LiTong for multi-cell configuration guidance.
FAQ 3 for SC2750?
This is additional FAQ information for SC2750. Contact LiTong for detailed technical support and application guidance. For more detailed information and application-specific guidance, please contact LiTong's technical support team. Our experienced FAEs can provide comprehensive assistance with product selection, design optimization, troubleshooting, and production support. LiTong is committed to helping you achieve the best results with SouthChip products in your applications. We offer reference designs, evaluation kits, and detailed documentation to accelerate your development cycle.
Contact LiTong for technical support.
FAQ 4 for SC2750?
This is additional FAQ information for SC2750. Contact LiTong for detailed technical support and application guidance. For more detailed information and application-specific guidance, please contact LiTong's technical support team. Our experienced FAEs can provide comprehensive assistance with product selection, design optimization, troubleshooting, and production support. LiTong is committed to helping you achieve the best results with SouthChip products in your applications. We offer reference designs, evaluation kits, and detailed documentation to accelerate your development cycle.
Contact LiTong for technical support.
FAQ 5 for SC2750?
This is additional FAQ information for SC2750. Contact LiTong for detailed technical support and application guidance. For more detailed information and application-specific guidance, please contact LiTong's technical support team. Our experienced FAEs can provide comprehensive assistance with product selection, design optimization, troubleshooting, and production support. LiTong is committed to helping you achieve the best results with SouthChip products in your applications. We offer reference designs, evaluation kits, and detailed documentation to accelerate your development cycle.
Contact LiTong for technical support.