LTC6811HG-1#TRPBF

Overview

The LTC6811HG-1#TRPBF is a high-voltage, multi-cell battery stack monitor manufactured by Analog Devices Inc. It features an addressable isoSPI interface for daisy-chaining multiple devices to monitor large battery stacks. The device provides precise measurement of individual cell voltages and includes internal balancing capabilities. It operates within a supply voltage range of 11 V to 55 V and supports monitoring up to 12 series-connected cells. The component is housed in a 48-pin SSOP package and is designed for automotive applications with a specified operating temperature range of -40°C to +125°C.

Feature Summary

• Supports monitoring of up to 12 series-connected battery cells with high precision
• Features an addressable isoSPI interface allowing daisy-chain connection of multiple monitors
• Includes integrated cell balancing functionality to maintain battery stack equilibrium
• Designed for automotive environments with extended industrial temperature ratings

Applications

• Electric vehicle battery management systems
• Hybrid electric vehicle powertrain monitoring
• Stationary energy storage system stacks
• Industrial battery pack supervision

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the HG variant meets the required automotive qualification standards for your specific application environment. Ensure compatibility with the host controller's isoSPI protocol implementation before finalizing procurement decisions.

Selection Notes

Select this component when monitoring up to 12 cells per device is sufficient and daisy-chaining capability is required. Consider the 48-pin SSOP package constraints for PCB layout. Evaluate the need for integrated balancing against external circuit requirements. Verify input voltage ranges align with the maximum stack voltage of the target battery architecture.

Part Context

This part belongs to the LTC6811 family of battery stack monitors from Analog Devices. The family includes variants such as the LTC6811-2 which may offer different pin counts or interface options. The HG suffix typically denotes automotive-grade qualification. These devices are commonly used in conjunction with host microcontrollers to provide comprehensive state-of-charge and state-of-health data for lithium-ion or lead-acid battery packs.

Replacement Considerations

Direct replacements include other members of the LTC6811 family such as the LTC6811HG-2#3ZZTRPBF for higher channel counts. Cross-reference pinouts and register maps when substituting with similar multi-cell monitors from other manufacturers to ensure software compatibility.