Maxim Integrated MAX5955AEEE+ Product Overview

The MAX5955AEEE+ from Maxim Integrated is a high-performance, quad, IEEE 802.3af-compliant Power-over-Ethernet (PoE) power-sourcing equipment (PSE) controller. It is designed to facilitate the delivery of DC power along with data over Ethernet cabling to powered devices (PDs) such as IP phones, wireless access points, and network cameras. This integrated circuit is housed in a robust 16-lead QSOP package, making it an ideal solution for space-constrained applications.

The MAX5955AEEE+ provides a complete PSE solution by integrating the required control functions to detect and classify PDs according to IEEE 802.3af standards. It supports per-port power management, including current limiting, overload detection, and under/over-voltage protection. The device also features auto-restart functionality, ensuring reliable operation over a wide range of conditions.

Key Features:

• IEEE 802.3af-Compliant PSE Controller
• Quad-Port Operation for Multi-Channel Applications
• Integrated Power MOSFETs for Each Port
• Advanced Power Management with Programmable Current Limit
• Auto-Restart and Fault Protection Features
• Support for 2-Pair and 4-Pair Powering (Alternative A and B)
• Robust 16-Lead QSOP Package

The device's interface is user-friendly, offering both serial and parallel control options. This flexibility allows for easy integration into a variety of network infrastructure designs. The MAX5955AEEE+ is capable of performing the necessary PD detection and classification required by the PoE standard, ensuring that only compatible devices receive power. This not only protects the PSE and PDs from potential damage but also ensures efficient power usage.

With its integrated features and high level of integration, the MAX5955AEEE+ reduces external component count, thereby minimizing system complexity and cost. It is an excellent choice for network administrators and system integrators looking to implement PoE capabilities in network switches, routers, and midspan injectors.

Overall, the Maxim Integrated MAX5955AEEE+ is a reliable and feature-packed solution for powering Ethernet devices over a single cable, streamlining the infrastructure and reducing installation costs while adhering to the stringent requirements of the IEEE 802.3af standard.