PD70201EVB-U-25F-5 Isolated Flyback Converter Evaluation Board User Guide

PublishTime：2021-11-16

This document provides the description and operating procedures for Microsemi's PD70201EVB-U-25F-5 board. This board type is used for evaluating the performance of the PD70201 device in both standard IEEE802.3at and non-standard applications with input 17-54 V. The board is a 25 W PD consisting of DC isolated DC-DC converter to step down voltage to 5 V. The AUX input gets priority in supplying the load, when it is connected to the application and the PD inputs act as backup power if the AUX is disconnected.
Microsemi’s PD70201ILQ device is part of a family of devices that support the IEEE 802.3at standard PD interface, and a PWM controller that is used for PD operational voltages DC/DC.
The PD interface includes the following family of devices.
Microsemi’s PD70201EVB-U-25F-5 Evaluation Board provides designers with the environment needed for evaluating the performance and implementation of PD applications based on the PD70201 device.
The board uses a single PD device (PD70201ILQ) to support the Detection, Classification, and Power Supplying phases on the 2/4 pairs of the Cat5 cable. PD70201ILQ supports a standard IEEE802.3at Type 2 interface as well as wide range non-standard input voltage.
This document provides all necessary procedures and instructions to install and operate this board.
The board can be powered either by a PSE through CON1 or by an auxiliary connector (AUX connector), see for the input voltage range. The external load is connected electrical characteristics (see page 6)to evalutaion board using output connector (J1)(refer to for the output evaluation board (see page 4)connector).
The evaluation board can be powered by connecting an external AC adaptor to the AUX connector (J2) (refer to for the AUX connector).evaluation board (see page 4)D9 is the AT flag indication LED, a PD70201 device output signal indicating that the device has detected two fingers class, so the PSE side is AT level capable. This signal in the PD environment indicates that AT power level is supported.
The following image shows a top view of the evaluation board.

Brand of Product：	Microchip
Part#：	PD70201EVB-U-25F-5 、 PD70201 More Part#
Product Category：	Isolated Flyback Converter Evaluation Board More
Application：	More
Data Type：	User's Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	April 2018
Version Number：	Revision 1.0
Data Encoding：	PD-000304431
Data Size：	4.8 MB

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