Compact, High Efficiency, 30W Reference Platform, Supporting Wide Auxiliary Input Voltage, with the NCP1083 Evaluation Board User's Manual

Board Details
The NCP1083WIRGEVB implements a PoE module DC/DC converter that converts the higher voltage one the Ethernet cable to a lower voltage (12 V) with power levels up to 30W. Detection, classification and power up sequence is implemented according to IEEE802.3at (D4). The board also supports getting its power from and auxiliary input, in case PoE network is not available. Auxiliary input voltage may be as low as 9 V. The isolated flyback DC/DC converter design is optimized to support a very wide input voltage
range (9 V to 57 V) without compromising the overall efficiency.

  大大通精彩博文    世平安森美半導體 支援 at&af 協定 30W POE PD 端 NCP1083EVM使用說明

Integrated High Power PoE-PD Interface & DC-DC Converter Controller
• Flexible Auxiliary Power Supply Support
• Supporting the IEEE 802.3af and the 802.3at Standard
• Extended Power Ranges up to 40 W
• Over−temperature Protection
• 0.6Ω Hot−Swap Pass−switch with Low Loss Current
• Vertical N−channel DMOS Pass−switch Offers the Robustness of Discrete MOSFETs with Integrated Temperature Control

Jerry.yang@wpi-group.com