MAX5981AETE+T

Overview

The MAX5981AETE+T is a Power over Ethernet (PoE) interface controller compliant with IEEE 802.3af and 802.3at standards, designed for Powered Device (PD) applications. It operates within an input voltage range of 44 V to 57 V and supports output currents up to 1 A. The device utilizes a TQFN-16 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Compliant with IEEE 802.3af and 802.3at PoE standards
• Integrated high-side switch for power delivery
• Supports Powered Device classification detection

Applications

• Powered Device interface controllers in PoE systems
• Network infrastructure equipment requiring PD compliance
• Industrial control systems utilizing PoE power sourcing

Procurement Notes

Verify the specific suffix 'ATE' against official Analog Devices documentation to confirm temperature grade and packaging specifications. Confirm RoHS compliance status through current manufacturer certificates. Ensure compatibility with existing IEEE 802.3af/at system designs before procurement.

Selection Notes

Select this component for designs requiring strict adherence to IEEE 802.3af and 802.3at protocols. Verify that the required input voltage range aligns with standard PoE PSE outputs. Consider thermal management requirements for the TQFN-16 package in enclosed environments.

Part Context

This part belongs to the MAX5981 series of PoE controllers manufactured by Analog Devices / Maxim Integrated. It serves as a specialized interface solution for integrating powered devices into Ethernet networks, distinguishing itself from general-purpose switching regulators or other PMIC families.

Replacement Considerations

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