Microsemi PD70101EVB F Series User manual

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
PD70101EVBxF / PD70101EVBxFC
Evaluation Board User Guide
Revision 0.3
PRODUCTION DATA – Information contained in this document is proprietary to
Microsemi and is current as of publication date. This document may not be
modified in any way without the express written consent of Microsemi. Product
processing does not necessarily include testing of all parameters. Microsemi
reserves the right to change the configuration and performance of the product and
to discontinue product at any time.

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 2
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
1 Enterprise, Aliso Viejo, CA 92656, USA; Phone (USA): [phone], (ROW): [phone] Fax: [phone]
1 0BAbout this Guide
This user guide provides both description and operation procedures for Microsemi's PD70101EVBxF and
PD70101EVBxFC boards.
All of these board types are used for evaluating the performance of PD70101 PD applications.
The existing boards’ types support a range of 3.3 - 13 Watts PDs with and without Standby Mode.
1.1 7BAudience
This user guide is intended for qualified personnel, meaning operators and technicians who have a background in
basic concepts of electronics.
1.2 8BOrganization
This guide is divided into several sections as follows:
•Chapter 1 About this Guide: Describes the objectives, audience, and organization.
•Chapter 2 Introduction: Provides an overview about evaluation board’s main functions,
features, physical characteristics and ordering information.
•Chapter 3 Physical Description: Provides explanation related to the physical
description (switches, jumpers, connectors).
•Chapter 4 Electrical Characteristics: Provides electrical characteristics of the
evaluation board.
•Chapter 5 Installation: Provides description of the installation process.
•Chapter 6 Schematic: Provides board schematic diagram
•Chapter 7 List of Materials: Provides board’s list of materials.
1.3 9BReference Documents
PD70101 datasheet, catalogue number DS_PD70101_70201

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 3
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
1 Enterprise, Aliso Viejo, CA 92656, USA; Phone (USA): [phone], (ROW): [phone] Fax: [phone]
2 1BIntroduction
Microsemi’s PD70101EVBxF Evaluation Board (see Figure 2) provides designers with the needed environment to
evaluate the performance and implementation of PD applications based on PD70101 PD-chip. The evaluation
board enables PD designers to evaluate Microsemi's PD-chip solution.
All necessary steps and connection instructions required to install and operate this board are provided within this
document.
PD70101
Based
Vin to Vout
DCDC
RJ
Data
out
RJ45
Data
+
Power
Wall
adapter
In
Pulse
XFMR
Vout
conn
Diode
Bridge
Vin
Combined
Vin
5V
Or
3.3V
Figure 1: PD70101EVBxF Block Diagram
Figure 2: PD70101EVB6F Evaluation Board – General View

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 4
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
1 Enterprise, Aliso Viejo, CA 92656, USA; Phone (USA): [phone], (ROW): [phone] Fax: [phone]
2.1 10BEvaluation Boards Ordering Information
Microsemi’s supplies the following Evaluation Boards:
2.2 11BEvaluation Board Features
Designed to support one PD-chip application (2-pairs)
Two RJ45 connectors (Data and Power In, Data Out)
Optional Wall adapter – DC in connector
Output voltage connector.
On board LED indicator
Pulse transformers and common mode chocks
Evaluation Board working temperature: 0° to +70°C
RoHS compliant
Optional standby circuitry
2.3 12BEvaluation Board Interfaces and Connections
Board has several interfaces:
RJ45 Interface: Running from PSE side to PD (powered device), based on PD70101 (CON1)
Vin Connectors: DC in, alternative wall adapter connection (CON2)
LEDs Indication: Power good LED indication (D5)
Output Voltage Connector: 3.3V or 5V based on EVB type (J1)
2.4 13BPhysical Characteristics
Table 1 lists evaluation board’s physical characteristics.
Table 1: Physical Characteristics
Parameter Value
Mechanical dimensions in mm 76 x 65 x 29 mm (L x W x H)
Ordering Number Description
PD70101EVB3F IEEE802.3 Type 1 PD based on PD70101 device controlling an isolated
flyback converter, having a 3.3V 1Amp output.
PD70101EVB3FC
IEEE802.3 Type 1 PD based on PD70101 device controlling an isolated
flyback converter, having a 3.3V 1Amp output. The board comprises a
standby mode for minimum PSE power consumption.
PD70101EVB6F IEEE802.3 Type 1 PD based on PD70101 device controlling an isolated
flyback converter, having a 5V 1.2Amp output.
PD70101EVB6FC
IEEE802.3 Type 1 PD based on PD70101 device controlling an isolated
flyback converter, having a 5V 1.2Amp output. The board comprises a
standby mode for minimum PSE power consumption.
PD70101EVB15F IEEE802.3 Type 1 PD based on PD70101 device controlling an isolated
flyback converter, having a 5V 2.6Amp output.

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 5
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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3 2BPhysical Description
3.1 14BPackage Contents
Upon opening the Evaluation Board package, verify the following part is included. If it seems damaged, contact the
local representative or Microsemi's headquarters. Package content for standard shipments is:
PD70101EVBxF Evaluation Board
3.2 15BConnectors
The following sections provide both general and detailed information regarding unit’s connectors.
3.2.1 21BConnectors Table
Table 2 lists the Evaluation Board's connectors.
Table 2: Connectors List
#Connector Name Description
1 CON1 RJ45 Connector RJ45 port for Data and Power In for PSE connection
2 CON2 RJ45 Connectors RJ45 port for Data Out for PD data connection
3 J2 Optional Wall Adapter
Optional DC in connection for powering the board
instead of CON1.
Insertion of wall adapter connector disconnects CON1.
4 J1 Converter Output A terminal block for connecting a load to output
regulator
3.2.2 22BConnectors Detailed Explanation
(The numbering is in reference to the numbers listed in Table 2.)
1. RJ45 Connectors (CON1)
There are two dedicated RJ45 connectors, See Figure 3.
Table 3: RJ45 Connectors
CON2 Pin No Signal Name Description
1, 2, 3, 4, 5, 6, 7, 8 Data Out Data output to PD
CON1 Pin No Signal Name Description
1, 2 Data and Power In Data and power input to powered device (PoE Master
Negative data port)
3, 6 Data and Power In Data and power input to powered device (PoE Master
Positive data port)
4, 5 Data and Power In Data and power input to powered device (PoE Master
Negative data port)
7, 8 Data and Power In Data and power input to powered device (PoE Master
Positive data port)

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 6
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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Figure 3: Front RJ45 and Wall Adapter Connectors
2. Vin Connectors (J2)
DC in connection can be used to power Evaluation Board instead of RJ45 PSE connection
44V > Vin > 57VDC.
Table 4: Vin Connectors
Pin No. Signal Name Description
External ring Vmain (Vin -) Negative input voltage
Internal pin Vmain (Vin +) Positive input voltage
Manufacturer: TAl CHUNG ELECTRONIC COMPONENT PARTS CO., LTD.
Manufacture part number: TC18-013-02

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 7
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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3. Vout Connectors
See Figure 4.
J1 –DCDC output connection, used for connecting to external load.
Table 5: J1 Connectors
Pin No. Signal Name Description
1 – Left Vout Positive DCDC output voltage
2 – Right GND Return of DCDC output voltage
Figure 4: Vout Connectors
4. LED Indication
See Figure 5.
D5 is the Power_GOOD indication LED, a PD70101 device output signal indicating device's isolation switch is
operated.
Figure 5: Power_Good LED Indication

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 8
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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5. Sleep Circuitry
See Figure 6.
PD70101EVBxFC boards feature Sleep circuitry for disabling the PWM controller while the PD goes to Sleep
Mode. “Sleep Control Circuitry” section in paragraph 6 Schematic is assembled for enabling this feature.
PD70101EVBxFC boards feature shuts down the PWM controller side by applying a pulse on sleep signal; this is
done by shorting TPs "SLEEP" and "SLEEPGND" next to the output voltage connector. These signals are part of
the Isolated Side of the DCDC converter.
This event shuts down the PWM controller side and turns on Sleep Mode LED (D2). In this mode the circuit
consumes the minimum current (10mA) for keeping the PSE side in state.
When Wake up is needed, a short between "WAKEUP" and "WAKEGND" TPs re-operates the PWM side, rising
the output voltage up again. These signals are part of the non-isolated Side of the DCDC converter.
This feature utilizes an external 555 device (U12 on the board) which latches the sleep mode.
Figure 6: Sleep Mode Control

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 9
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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4 3BElectrical Characteristics
Evaluation board’s electrical characteristics are described below:
Table 6: Electrical Characteristics
Parameter Symbol Min. Max. Units
Main DC Supply – Vmain 44 57 V
Port Isolation to Chassis - 1.5 kVrms
All Communication's Isolation to
Chassis - 1.5 kVrms

PD70101EVBxF / PD70101EVBxFC Evaluation Board – User Guide
Copyright © 2011 Microsemi Page 10
Rev. 0.3, 8-Dec-11 Analog Mixed Signal Group
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5 4BInstallation
This chapter describes the steps required to install and operate Evaluation Board with any PoE application.
5.1 16BPreliminary Considerations and Safety Precautions
Verify board's power supply is turned on before peripheral devices are turned on.
5.2 17BInitial Configuration
Note: It is important to verify Evaluation Board is setup as shown in Figure 7 prior to starting any operation.
1. Connect load to main board (J1).
2. Connect a power cable from power supply to Evaluation Board (CON1).
3. Connect Ethernet Cable from Evaluation Board (CON2) to Ethernet Host.
Ethernet
cable
Powered
Device
Load
Power
Cable
DC output
PSE
Figure 7: Test Setup