EPR-86 Datasheet, PDF (3/28 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 86 - 6.6 W Multi-Class Powered Device (PD) for Power over Ethernet (PoE) Using DPA-Switch-(DPA423G)

13-Apr-2006
EP-86 – 6.6 W, 3.3 V, 2 A PoE Powered Device
1 Introduction
This engineering report describes a PoE power supply designed around the DPA423G.
The supply can deliver 6.6 W continuously, from an input voltage range of 33 VDC to
57 VDC.
The following design information is provided: the power supply specification, circuit
diagrams, a complete bill of materials, the results of the PIXls spreadsheet file that was
used to design the supply and detailed information on the design and construction of the
transformer. Data and test results that document the performance of the supply under
various line and load conditions are also included.
Figure 1 – Populated Circuit Board Top View.
Figure 2 – Populated Circuit Board Bottom View.
Page 3 of 28
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