NCP1083数据手册集成电路（IC）的以太网供电（PoE）控制器规格书PDF

描述 Description

The NCP1083 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 NCP1083 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 NCP1083 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 NCP1083 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

特性 Features

• Auxiliary supply support with an input down to 9 V DC in combination with an extended power range up to 40 W.
• Eliminates the need for a second DC-DC converter to support traditional non-PoE power sources which may range down to 9 V.
• Improved robustness behavior against cable ESD. The NCP1083 reaches more then 4 kV on HBM and 3 kV for CESD.
• Protects the device against cable transients and hot swap events that can occur in harsh environments and when installed outdoors.
• A programmable operational current limit up to 1100 mA for extended power ranges up to 40 W.
• Supportsthe IEEE802.3at and proprietary high power solutions beyond the standard up to 40 W.

应用 Application

• Power over Ethernet Powered Devices (PoE-PD)
• Wall-wart alternative
• PoE in combination with a wall wart
• IP PTZ cameras
• Point of sale
• High end VoIP phones
• WLAN MIMO access point
• Industiral high power equipment

简介

NCP1083属于集成电路（IC）的以太网供电（PoE）控制器。由制造生产的NCP1083以太网供电（PoE）控制器以太网供电 (PoE) 控制器允许设计人员通过单个以太网连接传输电流和数据。远程设备通过以太网电缆供电，因此无需电池、本地电源适配器和其他电源电缆。桥式整流器和 N+1 O-Ring 是两种 PoE 控制器类型。可用特性可能包括 N 和 P 沟道 FET、内部开关和汽车认证。