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NCP1031POEEVB:  6.5 W PoE DC-DC Converter Evaluation Board

A solution to one aspect of Power Over Ethernet (POE) is presented here utilizing the ON Semiconductor NCP1031 series of monolithic, high voltage switching regulators with internal MOSFET. The NCP1031POE evaluation board is an inexpensive, high efficiency, 6.5 W, 5.0 V DC output power supply along with the associated input circuitry for responding to POE detection and classification protocol. The input is 48 Vdc nominal and the output is 5 Vdc at 1.3 A maximum. There is additional input circuitry that responds to Ethernet protocol defined as 'Signature' and 'Classification' detection. Signature just indicates that the power supply does exist and classification allows the upstream Power Sourcing Equipment (PSE) to determine the rated power level of the supply or Powered Device (PD). Both of these detection modes are performed at low input voltages in which the main converter does not operate. The converter will only come on with Vin above 35 Vdc.
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
NCP1031POEEVB Active
6.5 W PoE DC-DC Converter Evaluation Board NCP1031DR2G
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: BOM NCP1031POEEVB Bill of Materials NCP1031POEEVB_BOM.PDF - 143.0 KB  1 
Eval Board: Gerber NCP1031POEEVB Gerber Layout Files (Zip Format) NCP1031POEEVB_GERBERS.ZIP - 66.0 KB  0 
Eval Board: Schematic NCP1031POEEVB Schematic NCP1031POEEVB_SCHEMATIC.PDF - 42.0 KB  0 
Eval Board: Test Procedure NCP1031POEEVB Test Procedure NCP1031POEEVB_TEST_PROCEDURE.PDF - 33.0 KB  0 
Eval Board: Manual NCP1031POEEVB Manual EVBUM2142/D - 598.0 KB  2 
Video Power Over Ethernet Solutions with the NCP1031POEEVB Evaluation Board TND6070/D  1 
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Power Over Ethernet Solutions with the NCP1031POEEVB Evaluation Board
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