AD7284WBSWZ

Overview

The AD7284WBSWZ is an 8-channel lithium-ion battery monitor IC designed for automotive applications, featuring ISO 26262 compliance. It operates within a supply voltage range of 10 V to 40 V and supports a maximum junction temperature of 150°C. The device utilizes a 64-pin LQFP package with an exposed pad for surface mount installation. It provides a 5 V output and interfaces via SPI, GPIO, or I2C protocols.

Feature Summary

• Supports monitoring of up to eight series-connected lithium-ion cells
• Complies with ISO 26262 automotive functional safety standards
• Enables high-temperature operation suitable for harsh automotive environments

Applications

• Automotive battery management systems
• Lithium-ion battery pack monitoring
• Electric vehicle powertrain control units

Procurement Notes

Verify the specific suffix (e.g., -RL) against your reel or cut-tape requirements, as availability varies by packaging format. Confirm current stock status with authorized distributors, as some listings indicate limited supply or factory special order constraints. Ensure the selected variant matches the required interface and thermal specifications for your design.

Selection Notes

Select this component for designs requiring certified automotive safety compliance and multi-cell monitoring in a single package. Consider the 64-LQFP footprint and exposed pad thermal requirements during PCB layout. Verify that the host controller supports the necessary SPI or I2C communication protocols for configuration and data retrieval.

Part Context

This part belongs to the AD7284 family of battery monitors from Analog Devices Inc. It is specifically engineered for automotive-grade reliability, distinguishing it from general-purpose industrial monitors through its functional safety certification and extended temperature capabilities.

Replacement Considerations

Check for direct pin-compatible substitutes within the AD7284 family, such as variants with different suffixes indicating packaging changes. Verify that any alternative maintains the same ISO 26262 qualification level and channel count to ensure system compatibility.