Linear Technology's LTC6801IG: A High Voltage Battery Stack Monitor

The LTC6801IG is a precision battery monitoring IC designed by Linear Technology to address the needs of complex battery stack management. This integrated circuit is specifically engineered for monitoring up to 12 series-connected battery cells, making it an ideal choice for electric vehicles, energy storage systems, and other applications requiring high voltage battery stack monitoring.

Key Features:

• Multi-Cell Monitoring: Capable of monitoring up to 12 series-connected battery cells with a measurement range of 0V to 5V per cell.
• High Accuracy: Offers a high accuracy of ±0.25% for cell voltage measurements, ensuring precise monitoring and balancing of battery cells.
• Robust Communication: Integrates a reliable ISO-11898 compliant CAN interface for robust communication in noisy environments.
• Temperature Measurement: Supports external temperature sensing to monitor the thermal conditions of the battery pack.
• High Voltage Capability: Designed to withstand up to 1000V common-mode voltage, enhancing safety in high voltage battery systems.

Additional Benefits:

The LTC6801IG is crafted with an industrial-grade temperature range, functioning reliably between -40°C to 85°C. Its robust design includes a built-in self-test function that ensures the integrity of the monitoring system at all times. Moreover, the device's daisy-chain capability allows multiple LTC6801IG units to be connected in series, enabling the monitoring of battery stacks with more than 12 cells.

Applications:

• Electric and Hybrid Electric Vehicles (EV/HEV)
• Backup Battery Systems
• Grid Energy Storage
• Uninterruptible Power Supplies (UPS)
• Portable Power Tools

Overall, the Linear Technology LTC6801IG is a comprehensive solution for high voltage battery stack monitoring, offering precision, reliability, and ease of integration for complex battery management systems.