LTC6804IG-1#TRPBF

Overview

The LTC6804IG-1#TRPBF is a multicell battery stack monitor manufactured by Analog Devices Inc., designed for high-precision voltage measurement in series-connected battery configurations. It supports monitoring up to twelve cells with a total measurement error not exceeding 1.2mV. The device operates within a supply voltage range of 11 V to 55 V and features an isoSPI interface for isolated communication. Key electrical parameters include a maximum operating temperature of +85°C, a minimum of -40°C, and a quiescent current of 550 uA. It utilizes a 48-SSOP surface-mount package.

Feature Summary

• Supports daisy-chain architecture for scalable monitoring of large battery stacks
• Integrates isoSPI isolated serial communication interface for reliable data transfer
• Includes programmable passive cell balancing functionality to extend battery life
• Features integrated noise filtering via a 16-bit delta-sigma ADC

Applications

• Electric vehicle battery management systems
• Hybrid electric vehicle power sources
• Grid energy storage applications
• Uninterruptible power supply (UPS) systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the part number corresponds to the Analog Devices manufacturer and matches the required automotive or industrial grade specifications. Ensure compatibility with existing PCB footprints for the 48-SSOP package before finalizing procurement orders.

Selection Notes

Select this component for applications requiring precise monitoring of multiple series-connected cells. The LTC6804IG-1 variant specifically supports daisy-chain connections, distinguishing it from parallel-addressable alternatives. Consider the operating temperature range and supply voltage requirements to ensure alignment with system constraints and environmental conditions.

Part Context

This part belongs to the LTC6804 family of battery monitors, which are engineered for high-voltage battery stacks. The IG-1 designation specifies the daisy-chain communication topology. It is commonly evaluated using development tools such as the DC1894B demo board, facilitating integration into complex power management architectures.

Replacement Considerations

LTC6804IG-2#PBF serves as a functional alternative with parallel addressing capabilities instead of daisy-chain connectivity. Other variants within the LTC6804 series may offer different packaging or temperature grades but maintain core monitoring functions.