MAX5922CEUI+

Overview

The MAX5922CEUI+ is a +48V single-port network power switch designed for Power-over-LAN applications. It functions as a hot-swap voltage controller, managing the safe insertion and removal of circuit boards from live backplanes. The device integrates protection features to prevent damage during power-up and fault conditions. Packaged in a 28-pin TSSOP, it supports IEEE 802.3af (PoE) standards for powering remote devices over Ethernet cabling.

Feature Summary

• Integrated hot-swap control for safe board insertion and removal
• Supports +48V single-port network power switching
• Complies with IEEE 802.3af (PoE) standards

Applications

• Power-sourcing equipment in Power-over-LAN systems
• Network infrastructure hardware requiring PoE support
• Telecommunications equipment powered via Ethernet

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 28-TSSOP configuration. Cross-reference datasheet revisions to confirm pinout consistency before integration into new designs.

Selection Notes

Select this component for applications requiring integrated hot-swap management in +48V PoE environments. It is suitable for single-port implementations where space efficiency is critical. Consider thermal performance requirements associated with the TSSOP package when designing the heat dissipation strategy.

Part Context

This part belongs to the Maxim Integrated portfolio, now part of Analog Devices. It is specifically engineered for network power switching, distinguishing itself from general-purpose power switches by its compliance with PoE standards and integrated hot-swap capabilities for telecom and networking gear.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Generic replacements may lack specific PoE compliance or hot-swap timing characteristics required for network infrastructure.