LT LTC4265CDE#PBF

控制器（PD）25.5 W802.3at（PoE+），802.3af（PoE）

Overview

The LTC4265CDE is a 3rd generation Powered Device (PD) Interface controller intended for IEEE 802.3at high power Power-over-Ethernet (PoE) applications up to 25.5W. By supporting 1-event and 2-event classification signaling as defined by IEEE 802.3, the LTC4265CDE can be used in a wide range of product configurations. A 100V MOSFET isolates the DC/DC converter during detection and classification, and provides 100mA inrush current for a smooth power-up transition. The LTC4265CDE also includes complementary power good outputs, an on-board signature resistor, undervoltage/overvoltage lockout and comprehensive thermal protection. All PD solutions from ADI include a shutdown pin with signature corrupt to provide flexible auxiliary power options.

The LTC4265CDE is available in the space-saving low profile (4mm × 3mm) DFN package and is drop-in compatible with the LTC4264.

Features

Tube Package
Tube package
12 pin count

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC4265CDE#PBF Power Over Ethernet (PoE) Controllers applications.

• Higher Power Ethernet Powered Devices
• 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