LTC6811IG-1#TRPBF

Overview

The LTC6811IG-1#TRPBF is a 12-channel multicell battery stack monitor manufactured by Analog Devices Inc. It operates within a supply voltage range of 11 V to 55 V and delivers an output voltage of 5.7 V. The device functions at a working supply current of 550 uA and supports an operating temperature range from -40 C to +85 C. It is housed in a 48-pin SSOP package designed for surface mount installation.

Feature Summary

• Monitors up to twelve series-connected battery cells simultaneously
• Features addressable isoSPI interface for daisy-chain communication
• Includes internal protection mechanisms against short circuits and thermal events

Applications

• Electric vehicle battery management systems
• Stationary energy storage system monitoring
• Portable equipment power source supervision

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the IG-1 designation aligns with automotive-grade requirements if applicable to the target environment. Ensure compatibility with existing PCB footprints for the 48-pin SSOP package before finalizing procurement orders.

Selection Notes

Select this component for applications requiring precise monitoring of high-voltage battery stacks. The integrated isoSPI interface simplifies wiring complexity compared to traditional SPI implementations. Consider the 550 uA supply current for low-power standby requirements in energy-constrained environments.

Part Context

This part belongs to the LTC681x family of battery monitors, which are designed for high-accuracy cell voltage measurement. The LTC6811 specifically targets twelve-cell configurations, distinguishing it from other family members like the LTC6812 which supports twenty-four channels. These devices serve as critical interfaces between battery cells and host microcontrollers.

Replacement Considerations

The LTC6811IG-1#PBF serves as a tube-packaged alternative to the TRPBF variant. Verify package type requirements before substitution. Other family members such as the LTC6812 offer expanded channel counts but differ in pinout and functionality.