ADI LTC4274AIUHF-1#PBF

控制器（PSE）38.7 W802.3at（PoE+），802.3af（PoE），LTPoE++

Overview

The LTC4274AIUHF-1#TRPBF is a single power sourcing equipment controller designed for use in IEEE 802.3 Type 1 and Type 2 (high power) compliant Power over Ethernet systems. External power MOSFETs enhance system reliability and minimize channel resistance, cutting power dissipation and eliminating the need for heatsinks even at Type 2 power levels. External power components also allow use at very high power levels while remaining otherwise compatible with the IEEE standard. 80V-rated port pins provide robust protection against external faults.

The LTC4274AIUHF-1#TRPBF is available in a 5mm × 7mm QFN package that significantly reduces board space compared with competing solutions.

Features

Tube Package
Tube package
38 pin count
38 pins
3.354V power supplies

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC4274AIUHF-1#PBF Power Over Ethernet (PoE) Controllers applications.

• Security Cameras
• Internet Appliances
• POS Terminals
• IEEE 802.3af Compliant PoE Powered Devices
• Non-Compliant, Application Specific Devices
• Higher Power Ethernet Powered Devices
• IP Phone Power Management
• Wireless Access Points
• Security Cameras
• Power over Ethernet