AD7280ABSTZ

Overview

The AD7280ABSTZ is a lithium-ion battery monitoring device manufactured by Analog Devices Inc. It operates within an 8 V to 30 V supply range and features an LQFP-48 surface-mount package. The component provides a 5.2 V output with a 5 mA current capability, consuming 5.6 mA of operating power. It supports industrial temperatures from -40°C to +105°C and includes humidity sensitivity characteristics.

Feature Summary

• Provides accurate voltage measurement data for lithium-ion battery stacks
• Features internal reference allowing precise cell voltage measurement accuracy
• Includes cell balancing interface outputs to control external FET transistors

Applications

• Lithium-ion battery stack monitoring systems
• Battery management system (BMS) primary monitors
• Cell balancing applications requiring identical stack voltages

Procurement Notes

Verify the specific suffix STZ against official documentation to confirm RoHS compliance status and lead-free manufacturing details. Confirm that the LQFP-48 package matches the target PCB footprint requirements. Ensure the 8 V to 30 V operating voltage aligns with the intended battery stack configuration before finalizing procurement.

Selection Notes

Select this component when designing systems requiring high-accuracy monitoring of multiple series-connected cells. The integrated reference and balancing interfaces reduce external component count. Verify that the SPI interface compatibility matches the host controller's digital communication standards.

Part Context

This part belongs to the AD7280A series, designed specifically for managing large numbers of individual cells in battery stacks. It functions as a primary monitor providing measurement data to system platforms. The device enables efficient load sharing and safety assurance through precise voltage tracking.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.