Reference Design Library > Power Management > POE - Power Over Ethernet > DAK-68A: Eval Board +Kit, PoE, 3.3V @ 2A

DAK-68A: Eval Board +Kit, PoE, 3.3V @ 2A

Summary

Design Accelerator Kits (DAK) provide all of the essential materials to get you started on your next switch mode power supply design. The kits include a fully assembled and tested prototype power supply board, comprehensive engineering report, product samples, unpopulated circuit board, data sheet and other related documentation.

This engineering report describes a 3.3 V / 2 A (6.6 W) DC-DC converter that is based on a DPA423G device. This design is intended as an evaluation platform for DPA-Switch devices in the low cost surface-mount DIP package. High operating efficiency, low parts count, small footprint and low height make this an ideal choice for Power over Ethernet (PoE) and VoIP DC-DC converter applications.

This report contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit board layout, and performance data.

Specifications

Manufacturer Power Integrations
Category Power Management
Sub-Category POE - Power Over Ethernet
Eval Board Part Number 596-1007-ND
Eval Board Supplier Power Integrations
Eval Board Board not Stocked
Compliance IEEE 802.3af (802.3at Type 1)
Outputs and Type 1 Isolated
Voltage Out 3.3 V
Current Out 2 A
Voltage In 36 ~ 57 V
Efficiency @ Conditions >79%, 48V in, 3.3V @ 2 A
>76%, 36 ~ 48V in, 3.3V @ 750 mA ~ 2 A
Internal Switch Yes
Features Current Limit (Adj. or Fixed)
Over Current Protection
Over Voltage Protection
Shutdown, Enable, Standby
Synchronizable
Thermal Protection
Under Voltage Protection, Brown-Out
Zero Load Regulation
Switching Frequency 400 kHz
Component Count + Extras 37 + 4
Application / Target Market PoE, Power Over Ethernet
Design Author Power Integrations
Main I.C. Base Part DPA423
Date Created By Author
Date Added To Library 2011-03

Eval Board

Non-Stock

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Support Documents & Media

DAK-68A - User Guide DPA423-DPA426 - Datasheet

Media

DAK_68A_Schematic.JPG DAK_68A_Populated_Board.JPG