MAX5922AEUI+T

Overview

The MAX5922AEUI+T is a single-port network power switch and hot swap voltage controller designed for +48V applications. It integrates an N-channel power MOSFET, current limit control, and thermal protection. The device supports IEEE 802.3af Power over Ethernet (PoE) standards, providing precise current limiting and soft-start capabilities to manage inrush currents during board insertion. It features fault monitoring outputs and operates within a specified temperature range.

Feature Summary

• Integrates a high-side N-channel power MOSFET with built-in current limiting and thermal shutdown protection.
• Supports IEEE 802.3af PoE standards with programmable current limit and soft-start functionality.
• Provides fault status reporting through dedicated output pins for system monitoring.

Applications

• Single-port Power over Ethernet (PoE) powered devices
• +48V hot swap circuit boards in telecommunications equipment
• Network infrastructure power distribution modules

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm package type and temperature grade. Confirm RoHS compliance status as indicated in the specific product documentation. Check for obsolescence notices or lifecycle changes directly from Analog Devices. Ensure the ordering part number matches the required tape-and-reel quantity if applicable.

Selection Notes

Select this component for single-port +48V applications requiring integrated PoE switching capabilities. Compare pin compatibility and electrical ratings with existing designs when considering upgrades. Verify that the thermal performance meets the enclosure requirements. Ensure the control interface aligns with the system's management logic.

Part Context

This part belongs to the Maxim Integrated hot swap controller family, specifically optimized for network power switching. It combines power delivery and control functions into a single compact package, reducing component count compared to discrete solutions. The series is widely used in telecom and industrial networking hardware.

Replacement Considerations

Consult the official cross-reference list for verified substitutes. Ensure any replacement maintains identical pinout and electrical specifications for direct integration without schematic modification.