ON NCP1083DEG

控制器（PD）40 W802.3at（PoE+），802.3af（PoE）

Overview

The NCP1083DEG is a member of the ON Semiconductor high power HIPO™ Power over Ethernet Powered Device (PoE-PD) product family and represents a robust, flexible and highly integrated solution targeting demanding medium and high power Ethernet applications. It combines in a single unit an enhanced PoE-PD interface supporting the IEEE 802.3af and the upcoming draft IEEE 802.3at (D3.0) standard and a flexible and configurable DC-DC converter controller. The NCP1083's exceptional capabilities enable applications to smoothly transition from non-PoE to PoE enabled networks by also supporting power from auxiliary sources such as AC power adapters and battery supplies, eliminating the need for a second switching power supply. ON Semiconductor's unique manufacturing process and design enhancements allow the NCP1083DEG to deliver up to 25.5 W for the draft IEEE 802.3at (D3.0) standard and up to 40 W for proprietary high power PoE applications. The NCP1083DEG enables the draft IEEE 802.3at (D3.0) and implements a two event physical layer classification. Additional proprietary classification procedures support high power sourcing equipment (PSE) on the market. The unique high power features leverage the significant cost advantages of PoE-enabled systems to a much broader spectrum of products in emerging markets such as industrial ethernet devices, PTZ and Dome IP cameras, RFID readers, MIMO WLAN access points, high-end VoIP phones, notebooks, etc. The integrated current mode DC-DC controller facilitates isolated and non-isolated fly-back, forward and buck converter topologies. It has all the features necessary for a flexible, robust and highly efficient design including programmable switching frequency, duty cycle up to 80 percent, slope compensation, and soft start-up. The NCP1083DEG is fabricated in a robust high voltage process and integrates a rugged vertical N-channel DMOS with a low loss current sense technique suitable for the most demanding environments

Features

Bulk Package
Tube package
20 pin count
20 pins
The output current of 1.1A

Surface Mount Mounting Type

Applications

There are a lot of ON Semiconductor
NCP1083DEG Power Over Ethernet (PoE) Controllers 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