Maxim MAX5971AETI+

Контроллер (PSE)40 W802.3at (PoE+), 802.3af (PoE)

Overview

The MAX5971AETI+ is a single-port, power-sourcing equipment (PSE) power controller designed for use in IEEE 802.3af/at-compliant PSE. This device provides powered device (PD) discovery, classification, current limit, DC and AC load-disconnect detections. The MAX5971AETI+ operates automatically without the need for any software programming and features an integrated power MOSFET and sense resistor. The device also supports new Class 5 and 2-event classification for detection and classification of high-power PDs. The MAX5971AETI+ provides up to 40W to a single port (Class 5 enabled) and still provides high-capacitance detection for legacy PDs. The MAX5971AETI+ provides input undervoltage lockout (UVLO), input overvoltage lockout, overtemperature detection, output voltage slew-rate limit during startup, and LED status indication. The MAX5971AETI+ is available in a space-saving, 28-pin TQFN (5mm x 5mm) power package, and is rated for the extended (-40°C to +85°C) temperature range.

Features

Applications

• IP Phone Power Management
• Wireless Access Points
• Security Cameras
• Power over Ethernet
• PoE powered device appliances
• High power (>12.95 W) powered devices
• IEEE 802.3bt (Draft) Compliant Devices
• Lighting
• Power Modules
• Dual Signature PD/Forced UPOE