MAX5988AETP+

Overview

The MAX5988AETP+ is a Power over Ethernet (PoE) controller designed for Powered Devices (PD) compliant with the IEEE 802.3af standard. It integrates an internal high-side switch and auxiliary sense capabilities to manage power delivery efficiently. The device operates within a supply voltage range of 8.8 V to 60 V and functions reliably across a temperature range of -40°C to +85°C. Packaged in a 20-pin TQFN-EP format, it supports surface-mount installation for compact circuit designs.

Feature Summary

• Integrates an internal high-side switch for simplified board layout
• Supports auxiliary sensing for enhanced current monitoring accuracy
• Complies with IEEE 802.3af standards for PoE applications

Applications

• Home network infrastructure equipment
• Industrial control systems requiring PoE connectivity
• Wireless access points and IP cameras

Procurement Notes

Verify component authenticity through authorized Analog Devices channels due to discontinuation status. Confirm package integrity upon receipt as the part is no longer actively manufactured. Ensure storage conditions meet specified limits to prevent degradation before assembly.

Selection Notes

Select this component for designs requiring strict adherence to IEEE 802.3af protocols without external switching elements. Evaluate thermal performance requirements given the exposed pad package. Consider system voltage ranges against the 8.8 V to 60 V operational window.

Part Context

This part belongs to the Maxim Integrated PoE controller family, now under Analog Devices. It serves as a specialized power management IC for network endpoints. The series focuses on reducing component count by integrating switching functionality directly into the controller die.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints if sourcing from secondary markets.