LTC6812HLWE-1#3ZZTRPBF

Overview

The LTC6812HLWE-1#3ZZTRPBF is a multicell battery stack monitor from Analog Devices, designed to measure the voltage of up to 15 series-connected cells. It features an integrated isoSPI interface for high-speed, RF-immune communication and supports daisy-chaining for monitoring long battery stacks. The device includes passive cell balancing with programmable PWM duty cycle control and offers low power consumption in sleep mode. It is housed in a 64-pin eLQFP package and is suitable for automotive applications.

Feature Summary

• Measures voltage of up to 15 series-connected batteries with high accuracy
• Features isoSPI interface for robust, RF-immune serial communication
• Supports daisy-chaining multiple devices for extended battery stack monitoring
• Includes passive cell balancing with programmable pulse width modulation

Applications

• Electric vehicles and hybrid electric vehicles
• Backup battery systems
• Grid energy storage
• High-power portable equipment

Procurement Notes

Verify the specific suffix #3ZZTRPBF against the manufacturer's current datasheet to confirm packaging and tape-and-reel specifications. Ensure compatibility with the required operating temperature range and voltage levels for your specific battery management system design before finalizing procurement.

Selection Notes

Select this component when monitoring up to 15 cells per device is sufficient. Consider the LTC6813-1 if 18-cell monitoring is required. Verify that the isoSPI interface aligns with the host processor's communication capabilities and that the passive balancing current meets the thermal requirements of the application.

Part Context

This part belongs to the LTC681x family of battery monitors, which are designed for high-voltage battery stacks. It shares architectural similarities with the LTC6811 and LTC6813 but differs in channel count. The 'H' grade typically indicates extended temperature performance, while the 'LWE' denotes the package type.

Replacement Considerations

Public confirmed substitute part numbers: None found.