PD7211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
PD70211EVB72FW-12
12V/72W Isolated Active Clamp Forward Converter PD
Evaluation Board User Guide
Revision 1.01
Copyright © 2016 Microsemi Page 2 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
1 About this guide
This user guide provides both description and operation procedures for Microsemi's PD70211EVB72FW-12
evaluating board. This board is used for evaluating the performance of PD70211A PD controller with integrated
switching regulator, and PD70224 Dual MOSFET – Based Active Bridge Rectifier.
PD70211ILQ device supports both the standard IEEE802.3at PD application interface, and a PWM controller that is
used to provide the PD operational voltage.
The evaluation board supports a 72 Watt, 12V output in its existing configuration, with no heat sink, at room
temperature.
1.1 Audience
This user guide is intended for qualified personnel, meaning operators and technicians who have a background in
basic concepts of electronics.
1.2 Organization
This guide is divided into several sections as follows:
Chapter Error!
Reference
source not
found.
Error! Reference source not found.: 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
Test Data: Provides board test data information
Chapter 7
Schematic: Provides board schematic diagram
Chapter 8
List of Material: Provides board’s list of materials.
Chapter 9
Board Layout: Provides board Gerber files description for all layers..
1.3 Reference Documents
PD70211 datasheet, catalogue number DS_PD70211
PD70224 datasheet, catalogue number DS_PD70224
PD System Layout Guidelines, catalogue number AN208
Implementing Auxiliary Power in PoE, catalogue number TN_214
Copyright © 2016 Microsemi Page 3 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
2 Introduction
Microsemi’s PD70211ILQ device is part of a family of devices which are targeted for realizing the 802.3at standard
PD interface.
The PD interface family of devices includes the following:
Device type
Power capability
Integrates PWM
controller
PD70100
IEEE802.3at Type 1
(IEEE802.3 af level)
No
PD70101
IEEE802.3at Type 1
(IEEE802.3 af level)
Yes
PD70200
IEEE802.3at Type 2
No
PD70201
IEEE802.3at Type 2
Yes
PD70210(A)
2 x IEEE802.3at Type 2 (4 pair)
HDBaseT (95W)
No
PD70211
2 x IEEE802.3at Type 2 (4 pair)
HDBaseT (95W)
Yes
Microsemi’s PD70211EVB72FW-12 Evaluation Board (see Figure 2) provides designers with an environment
needed for evaluating the performance and implementation of PD applications based on PD70211 controller.
The board is using a single PD controller, PD70211ILQ, to support the Detection, Class, and Power Supplying
phases on the 4 Pairs of the Cat5 cable. The board supports sync detection of the 4 pairs. PD70211ILQ supports
the current of the HDBaseT over 4 Pairs, which is more than twice the power of a standard IEEE802.3AT Type 2
interface.
All necessary steps and connection instructions required to install and operate this board are provided within this
document.
Figure 1: PD70211EVB72FW-12 Block Diagram
Copyright © 2016 Microsemi Page 4 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
Figure 2: PD70211EVB72FW-12 Evaluation Board – General View
Evaluation Boards Ordering Information
Microsemi supplies the following Evaluation Board as shown below:
Ordering Number
Description
PD70211EVB72FW-12
2 x IEEE802.3at Type 2 (4 pair) PD based on PD70211 device having 4 pair
supply, controlling an isolated Forward converter, having a 12V 6 Amp
output.
Copyright © 2016 Microsemi Page 5 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
2.1 Evaluation Board Features
Designed to support Data and Spare current by a single PD70211A device
Power is supplied through the 4-pairs of the Cat5 cable
Wall Adapter input – Standard Barrel Jack available for connecting to an external 48-54V
Wall Adapter.
Data pass-through connector
On board PSE class type LED indicators
On board AT detected LED indicator
On board 4P_AT detected LED indicator
On board HD detected LED indicator
On board 4P_HD detected LED indicator
On board Power Good LED indicator which may be configured to monitor PD Front End or
VPP UVLO.
Ta: -40° to +70°C (with derating curve)
RoHS compliant
2.2 Physical Characteristics
Table 1 lists evaluation board’s physical characteristics.
Table 1: Physical Characteristics
Parameter
Value
Mechanical dimensions in mm
202 x 57 x 16 mm (L x W x H)
Copyright © 2016 Microsemi Page 6 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
3 Physical Description
3.1 Package Contents
Upon opening the Evaluation Board package, verify the following part is included.
If it seems damaged, contact local representative or Microsemi's headquarters.
Package content for standard shipments is:
PD70211EVB72FW-12 Evaluation Board.
Wall Adapter Input Cable
3.2 Connectors
The following sections provide both general and detailed information regarding unit’s connectors.
3.2.1 Connectors Table
Table 2 lists the Evaluation Board's connectors.
Table 2: Connectors List
#
Connector
Name
Description
1
J1
RJ45 Connector
RJ45 port for Data + Power In for PSE connection
2
J2
Wall Adapter Input
Standard Barrel Jack used for 48V Wall Adapter. Wall
adapter connection will be automatically sensed and will
override the PSE power connected to J1.
3
J3
Converter Output
Terminal pins for connecting a load to 5V output. J3
provides screw terminals for easy connection
4
J4
RJ45 Connector
RJ45 port for Data pass – through output
3.2.2 Connectors Detailed Explanation
(The numbering is in reference to the numbers listed in Table 2.)
1. RJ45 Connectors.
See
Figure 3. Table 3: RJ45 Connectors
J1 & J4 Pin No
Signal Name
Description
J1 - 1, 2
Data and Power In
Data and power input to powered device (PoE Master
Negative data port)
J1 - 3, 6
Data and Power In
Data and power input to powered device (PoE Master
Positive data port)
J1 - 4, 5
Data and Power In
Data and power input to powered device (PoE Master
Positive data port)
J1 - 7, 8
Data and Power In
Data and power input to powered device (PoE Master
Negative data port)
Copyright © 2016 Microsemi Page 7 of 24
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One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
J1 & J4 Pin No
Signal Name
Description
J4 - 1, 2
Data Output
Isolated data pass-through to external monitoring
device.
J4 - 3, 6
Data Output
Isolated data pass-through to external monitoring
device.
J4 - 4, 5
Data Output
Isolated data pass-through to external monitoring
device.
J4 - 7, 8
Data Output
Isolated data pass-through to external monitoring
device.
Figure 3: Front RJ45 and Auxiliary 48V Wall Adapter Connectors
2. Wall Adapter Connections
See Figure 3.
J2 Pin No
Signal Name
Description
Center Pin
VIN (+)
42V to 57V input from wall adapter.
Outer Barrel
VIN (-)
Wall Adapter Return
3. Vout Connections
See Figure 4.
Copyright © 2016 Microsemi Page 8 of 24
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One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
Table 4: Output Load Connections
Pin No.
Signal Name
Description
J3 - 2
Vout (-)
Return of DCDC output voltage
J3 - 1
Vout (+)
Positive DCDC output voltage
Figure 4: Vout Connections
3.3 Indications
The following sections provide general information regarding unit’s indications.
1. LED Indication
See Figure 5.
3.3.1.1 LED Indication
See Figure 5.
D16 is the AT_FLAG indication LED, a PD70211 device output signal indicating the device has detected a 2 finger
class event from the PSE side in the class stage. The flag will be operative at 3, 4, and 6 fingers detection as well.
D15 is the 4P_AT indication LED, a PD70211 device output signal indicating the device has detected a 4 finger
class event from the PSE side in the class stage, or a 2 finger class event from the PSE side in the class stage,
and SUPP_SA and SUPP_SB are both High.
The flag will be operative at 6 fingers detection as well.
D20 is the HD_FLAG indication LED, a PD70211 device output signal indicating the device has detected a 3 finger
class event from the PSE side in the class stage.
The flag will be operative at 6 fingers detection as well.
D19 is the 4P_HD indication LED, a PD70211 device output signal indicating the device has detected a 6 finger
class event from the PSE side in the class stage.
D14 is the Power Good indication. This LED indicates the presence of power. This indicator may be configured to
monitor PD Front End VAUX (Asserts when VPP = 36V min.; de-asserts when VPP = 31V min.), or it may be
configured to monitor the VPP UVLO, which is user selectable by the resistor values at VINS and HYST pins (R13,
R19, and R25). See the PD70211 datasheet for further details regarding setting VPP UVLO limits. EVB default for
Copyright © 2016 Microsemi Page 9 of 24
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One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
Power Good EVB is monitoring VPP UVLO, and will track the operation of the DC-DC converter. To change Power
Good to monitor PD Front End VAUX:
1) Remove R51, 100 Ohm Resistor (located on top of PCB near D19).
2) Add R50 Zero Ohm Jumper (also located on top of PCB near D19).
3) Insure that only R51 or R50 are installed; do not operate with both resistors installed.
Figure 5: LED Indications
Copyright © 2016 Microsemi Page 10 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
4 Electrical Characteristics
Evaluation board’s electrical characteristics are described below:
Table 5: Electrical Characteristics
Parameter
Min
Max
Main DC
Supply –
J1, VIN+,
VINRTN
42*
57
V
Wall
Adapter
Supply –
J2, VIN+,
VINRTN
42
57
V
Output
voltage
11.8
12.2
V
Maximum
Output
Current
6
A
Port
Isolation to
Chassis
-
1.5
kVrms
*After start-up, the minimum voltage is 36V with load ≤ 13W per IEEE specification.
Copyright © 2016 Microsemi Page 11 of 24
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One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
5 Installation
5.1 Preliminary Considerations and Safety Precautions
If using an external supply in place of a PSE, verify the external power supply is turned “off”
before all peripheral devices are connected. Insure the external supply is connected to the
RJ45 input (J1) per Table 3.
5.2 Initial Configuration
Note: It is important to verify evaluation board is setup as shown in Figure 6 prior to starting any operation.
1. Connect load to evaluation board (J3 -1 (+) & J3 – 2 (-), or TP17 (+) & TP16 (-)).
2. Connect a Cat5 cable from PSE to Evaluation Board (J1), or a 48V Wall Adapter to Evaluation Board (J2).
Note: Wall Adapter will override power from PSE.
Figure 6: Test Setup
Copyright © 2016 Microsemi Page 12 of 24
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PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
6 Test Data
This chapter describes typical EVB test data under various loads and POE input voltage levels.
The efficiency is indicated up to 72W output power.
Overall efficiency is measured at the input to the bridge. It does not include system-level components (input/output
connectors, data transformer, and EMI filter).
  
 
DC-DC efficiency is measured after the PD chip.
6.1 Efficiency vs. Input Voltage to the bridge at full load (72W output)
Figure 7: Efficiency vs. Input Voltage
6.2 Efficiency vs. Load Current at 48V Input to the bridge
Figure 8: Efficiency at 48V Input
90.0%
90.5%
91.0%
91.5%
92.0%
92.5%
93.0%
93.5%
40 45 50 55 60
Input Voltage
Eff overall
(with bridge)
Eff DC-DC
87%
88%
89%
90%
91%
92%
93%
94%
3 4 5 6
Output current (A)
Eff Overall
(with bridge)
Eff DC-DC
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PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
6.3 Efficiency vs. ambient temperature at 48V input
Figure 9: Efficiency vs. temperature at 48V Input
6.4 Output Ripple measured with 20MHz bandwidth
Figure 10: Full Load Voltage Ripple and Noise at 48V Input (100mV/div)
89%
90%
91%
92%
93%
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80
Ambient temperature OC
Eff overall
(with bridge)
Eff DC-DC
Copyright © 2016 Microsemi Page 14 of 24
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One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
6.5 Bode Plots at full load at 48Vin
Figure 11. Bode plots
Phase Margin:
80°
Gain Margin:
-22 dB
6.6 Step Load Response for transitions between 10% load and 100% load (rise
and fall time 100us)
Figure 12: Load Step Response (100mV/div)
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PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
7 Schematic
Figure 13: Evaluation Board Schematic (1 of 2)
Data4
Data5
Data7
Data2
Data3
Data6
Data1
DATA OUT
R60 75
R61 75
R62 75
R63 75
VIN+
VPN_IN
Term4
Term2
Term1
Term2
Term1
Term3
Term4
Term3
Power_Data+
Power_Data-
T6
1.47mH
P0351
1
2
3
4
Power_Spare-
WA_EN_PD
C153
1n
2000V
C27 10n
100V X7R
C152 10n
100V X7R
C39 10n
100V X7R
C169 10n
100V X7R
J1
08261X1TGH-F
RJ45-16P_TRANS_LED
Shield21
21
Shield22
22
Led1_C 17
Led1_A 18
TRD1+ 11
TRCT1 12
TRD1- 10
TRD2+ 4
TRCT2 6
TRD2- 5
TRD3+ 3
TRCT3 1
TRD3- 2
TRD4+ 8
TRCT4 7
TRD4- 9
VC1 13
Led2_1 19
Led2_2 20
VC2 14
VC3 15
VC4 16
R126
0PD-1206
N.C
GND-F
R127
0PD-1206
N.C
VPN_IN
D32
SMBJ58CA
PD-SMB
1 2
D33
SMBJ58CA
PD-SMB
1 2
D34
SMBJ58CA
PD-SMB
1 2
D35
SMBJ58CA
PD-SMB
1 2
Power_Data-
Power_Spare+Power_Data+
Power_Spare-
OPTIONAL FOR COMMON MODE
SURGE PROTECTION
POWER + DATA INPUT
U1
PD70224ILQ-TR.
OUTP_1
1
OUTP_2
2
OUTP_3
3
IN2B_5
5
IN2B_6
6
IN2B_7
7
IN2B_8
8
OUTN_10
10
OUTN_11
11
OUTN_12
12
IN2A_13
13
IN2A_14
14
SUPP_SA
16
SUPP_SB
17
IN1A_19
19
IN1A_20
20
OUTP_32 32
OUTP_31 31
OUTP_30 30
IN1B_28 28
IN1B_27 27
IN1B_26 26
IN1B_25 25
OUTN_23 23
OUTN_22 22
OUTN_21 21
EX_OUTP 41
IN2A_40 40
IN2A_39 39
IN1A_34 34
IN1A_33 33
EX_OUTN 42
NC_37 37
WA_EN 36
Power_Spare+
12345678
J4 RJ45-I
11
22
33
44
55
66
77
88
99
10 10
D4
SMAJ58CA
PD-SMA
Power_Data+
C170
1nF
100V
X7R
Data3
Data4
Data1
Data2
Data6
Data7
Data8
Data5
D24
SMAJ58CA
PD-SMA
J2
RAPC712X
SWITCHCRAFT-RAPC722
2
3
1
C37
1nF
16V
X7R
VPN_BRIDGE
R37
2K
PD-0603
SA
VIN+
VPN_IN
SB
C2
1nF
100V
X7RPD-0603
C16
1nF
100V
X7R
PD-0603
C32
100n
100V
X7R
PD-1206
C160
100n
100V
X7R
N.C
R89
11K
0805
D28
SMAJ58A
2 1
R90
4.02K
Q9 FDS86242
PD-SO8
4
3 8
7
6
5
2
1
C164
1nF
16V
X7R
PD-0603
R92
150K R93
150K
VPN_BRIDGE
WA_EN WA_EN_PD
C163
N.C
C166
N.C
VPOE-
1
C167
6.8n
2000V
X7R
PD-1812
R95
13K
D10
PD-SMB
2 1
R94
13K
VOE+
1
C165
10U
25V
X7R
Q8
ZVP3310FTA
PD-SOT23
2
1
3
C168
6.8n
2000V
X7R
PD-1812
WA_EN
Data8
Copyright © 2016 Microsemi Page 16 of 24
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PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
Figure 14: Evaluation Board Schematic (2 of 2)
R19 90.9K
C11
4.7uF
25V
X7R
PD-1206
C24 PD-0603
N.C
R23
5.1K
R67 20
PD-1210
R87 20
PD-1210
R31 0
L3
4.7mH[4700uH]
1 2
VR3
PD-SOD123
12V
2 1
C174
PD-0603
N.C
+C9
47uF
100
ALU
L2
10uH
7443631000
WURTH ELC.
1 2
BOTTOM
4P_AT_FLAG
R133
22.1
C14
100n
16V
AT_FLAG
F2
Q10
BSS123
PD-SOT23
2
1
3
VIN+
R47
30.1K
PD-1206
PD-1206-W
R52
100K
PD-0603
R51
100
PD-0603
HYST
VAUX_VCC
C17
82nF
100V
X7R
PD-0805
CSP
N.C = NOT CONNECTED (OPTIONAL)
C175
100n
X7R
PD-0805 +C10
470uF
16V
POLYMER
GATE_FW
R131
10K
T1
EFD25-12-PIN-SMD
LT-0586-S0N
1
5
2
3
7
8
4
6
9
10
11
12
Vaux
C154
PD-0805
N.C
R9 0
VIN+
R70
100K
TOP
C157
1nF
100V
X7R
PD-0603
L1
1uH
1 2
WA_EN_PD
VPN_IN
GND-F
R12
0.03
PD-1206
R65
100K
1
C25
1uF
16V
X7R
PD-0805
R29
100K
PD-0603
12Vout
D7
BAT54SLT1G
PD-SOT23
1
32
C12
4.7uF
25V
X7R
PD-1206
VR1
MMSZ4702
PD-SOD123
2 1
C23 50V
47n
X7R
VAUX_VCC
R16
2.49K
PD-0603
VL
C19
16V1uF
VL
1
1
1
VPN_IN
R27
100K
PD-0603
HD_FLAG
4P_AT_FLAG
AT_FLAG
4P_HD_FLAG WA_EN_PD
R24
1K
VAUX_VCC
HYST
R3
24.9K
PD-0805
R18
60.4K
PD-0603 R21
30.9
pd-0603
1
R30
53.6K
R33
562K
pd-0603
R36
18.7K
PD-0603
R34
562K
pd-0603
VIN+ D29
TL431AIDBZR
PD-SOT23
13
2
VL
VPN_IN
Q2
PD-POWER_56
FDMS86250
4
3 8
7
6
5
2
1
9
R20
9.53K
PD-0805
U3
FOD817ASD
PD-SMD-4
1
23
4
C20 1n
2000V
R128
0PD-1206hv
N.C
R25 0
R64
10K
U2
PD70211ILQ-TR.
PD-QFN36-6X6
SUPP_S1
1
SUPP_S2
2
4P_AT_FLAG
3
RREF
4
RCLASS
5
HD_FLAG
6
AT_FLAG
7
VPN_IN8
8
VPN_IN9
9
VPN_OUT10
10
VPN_OUT11
11
ENABLE
12
VINS
13
HYST
14
SYNC
15
RFREQ
16
SS
17
RCLP
18
PGND 27
SG 26
VL 25
GND 24
FB 23
DAO 22
COMP 21
VSP 20
VSN 19
RDET 36
VPP 35
4P_HD_FLAG 34
WA_EN 33
VCC/VAUX 32
VH 31
PG 30
CSP 29
CSN 28
Trm_P 37
R85 0
C7
2.2uF
100V
X7R
PD-1210
Q16
FDS86242
PD-SO8
4
3 8
7
6
5
2
1
C5
2.2uF
100V
X7R
PD-1210
C6
2.2uF
100V
X7R
PD-1210
C156
0.068uF
200V
X7R
R129
2.7
PD-0603
SG
C8
100n
X7R
PD-0805
R130 0
C3
2.2uF
100V
X7R
PD-1210
C4
2.2uF
100V
X7R
PD-1210
PRI(+)
VPN_IN
C18 1nF
16V
X7R
D25
MBR0540T1G
PD-SOD123
21
CSP
CSN
PG
R11 100
CSN
R15 100
R4 22.1
D1
SMAJ40A
PD-SMA
2 1
R26
0
SA
SB
D2
ES1C-13-F
2 1
R8 10K
R10 10K
Q1
FDMS86101
4
3 8
7
6
5
2
1
9
C172
100p
200V
NPO
R132
20
PD-1210
C36
16V
1uF
C171
100p
F2
D6 1N4148W-7-F
PD-SOD123
21
D21
1N4148W-7-F
PD-SOD123
2 1
C21 50V10n
X7R
0603
4P_HD_FLAG
T2
296u
4
25
6
1
3
HD_FLAG
C158
50V10n
X7R
Vaux
C159
50V10n
X7R
C22
6.8nF
50
X7R
S_clamp
G_clamp
Q18
FMMT549
PD-SOT23
1
3 2
R55
5.1K D27
MBR0540T1G
PD-SOD123
2 1
R84
4.75
D8
MBR0540T1G
2 1
Q21
PD-SOT23
FMMT624
1
2 3
D23
SMAJ78CA
PD-SMA
Q20
PD-SOT23
FMMT624
1
2 3
C34
22uF
25V
X7R
PD-1210 R14 20
PD-0603
D16
SSC-GR101
Super Green
EVERLIGHT-19-21YGC
21
D14
SSC-GR101
Super Green
EVERLIGHT-19-21YGC
21
D15
SSC-GR101
Super Green
EVERLIGHT-19-21YGC
21
D20
SSC-GR101
Super Green
EVERLIGHT-19-21YGC
21
D19
SSC-GR101
Super Green
EVERLIGHT-19-21YGC
21
TP3
1
R28
2.49K
G_clamp
TP2
1
S_clamp
VR4
PD-SOD123
12V
2 1
R69
2.49K
BOTTOM
TP1
1
4P_HD
1
GATE_FW
HD_FLAG
1
D26
ES1C
150V
2 1
4P_AT
1
AT_FLAG
1
VINRTN 1
R49
5.11K
PD-1206
R58
5.11K
PD-1206
R48
5.11K
PD-1206
Vaux
R57
5.11K
PD-1206
12Vout
SG
TOP
C33
4.7u
16V
X5R
J3
CON-F200-1R-2P
1
1
2
2
VIN+
1
C173
100p
N.C
C35
100nF
50V
X7R
C155
1n
200V
NPO
PD-1206
TP4
1
Q3
FDMS86101
4
3 8
7
6
5
2
1
9
D22
BAV21W-V
2 1
R22
N.C
R50
PD-0603
N.C
Copyright © 2016 Microsemi Page 17 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
8 List of Materials
QTY
Reference
Value
Description
Mfr. Name
Mfr. Part Number
4
C2,C16,
C157,C170
1nF
Cap 1nF 100V 10% X7R
0603 SMT
Samsung
CL10B102KC8NNNC
5
C3,C4,C5,
C6,C7
2.2uF
CAP CER 2.2uF 100V 10%
X7R 1210 SMT
Kemet
C1210C225K1RACTU
2
C8,C175
100n
Capacitor, X7R, 100nF
100V 10% 0805
TDK
C2012X7R2A104K
1
C9
47uF
CAP ALUM 47uF 100V
20% 105C RADIAL 8X15
Samsung
NHA100VB47M
1
C10
470uF
CAP ALU POLYMER
470UF 20% 16V
Nichicon
RNE1C471MDN1PX
2
C11,C12
4.7uF
CAP CRM 100nF 50v 10%
X7R 0603
TDK
C3216X7R1E475KT
1
C14
100n
Capacitor, X7R, 100nF,
16V, 20% 0805
Kemet
C0805C104M4RACTU
1
C17
82nF
CAP CRM 100nF 100V
10%X7R 1206 SMT
Kemet
C0805C823K1RACTU
2
C18,C37
1nF
Capacitor, X7R, 1nF, 16V,
10% 0603
Samsung
CL10B102KANNNC
2
C19,C36
1uF
CAP CRM 1uF 10V
10%X7R 0805 SMT
Samsung
CL10A105MO8NNNC
2
C20,C153
1n
CAP CRM 1nF/2000V
10%++X7R 1206 SMT
AVX
1206GC102KAT1A
3
C21,C158,
C159
10n
CAP CRM 10nF 50v
10%X7R 0603 SMT
Rohm
MCH185CN103KK
1
C22
6.8nF
CAP CRM 4.7nF 16V 10%
X7R 0603 SMT
Yageo
CC0603KRX7R9BB682
1
C23
47n
Capacitor, X7R, 47nF,
50V, 10% 0603
TDK
C1608X7R1H473K
2
C24,C174
0.1 uF
Capacitor,0.1uF, X7R,
10V, 10% 0603
Kemet
C0603C104K8RACTU
1
C25
1uF
CAP CRM 1uF 16V
10%0805 X7R SMT
Murata
GRM21BR71C105KA01
4
C27,C39,
C152,C169
10n
CAP CRM 10nF 100V 5%
X7R 0805 SMT
Kemet
C0805C103J1RAC
1
C32
100n
CAP CRM 100nF 100V
10%X7R 1206 SMT
Kemet
C1206C104K1RACTU
1
C33
4.7u
CAP CRM 4.7uF 16V 10%
X5R 1206 SMT
Murata
GRM31CR71C475KA01L
1
C34
22uF
CAP CRM 22uF 25V 20%
1210 X7R SMT
Murata
GRM32ER71E226ME15L
Copyright © 2016 Microsemi Page 18 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
1
C35
100nF
CAP CRM 100nF 50v 10%
X7R 0603
Meritek
MA0603XR104K500
1
C154
10pF
CAP CRM 10pF 50V
5%NPO 0805 SMT
Samsung
CL21C100JBANNNC
1
C155
1n
CAP CRM 1200pF 100V
5% NPO 1206 SMT
EPCOS
B37871-K2102-J62
1
C156
0.068uF
CAP CRM 2.2uF 100V 10%
X7R 1210 SMT
AVX
12062C683KAT2A
1
C160
100n
CAP CRM 100nF 100V
10%X7R 1206 SMT
Samsung
CL31B104KCFNNNE
2
C163,C166
1n
CAP CRM 1nF/2000V
10%++X7R 1206 SMT
Kemet
C1206C102KGRAC
1
C164
1nF
Capacitor,X7R, 1nF, 16V,
10% 0603
Kemet
C0603C102K4RAC
1
C165
10uF
Capacitor, X7R, 10uF,
25V, 20% 1210
Murata
GRM32DR71E106MA12L
2
C167,C168
6.8n
CAP CRM 1nF/2000V
10%++X7R 1206 SMT
Novacap
1812B682J202NXT
1
C171
100p
CAP CRM 100pF 100v 5%
NPO 0603 SMT
Vishay
VJ0603A101JXBT
1
C172
100p
CAP CRM 100pF 200V
10% NPO 0805 SMT
AVX
08052A101KAT2A
1
D1
SMAJ40A
DIODE TVS 40V 400W
5uA 6.2 Amps Uni-Dir
SMT
Bourns
SMAJ40A
1
D2
ES1C-13-F
DIODE SUPER FAST 150V
1A SMA SMT
Diodes Inc.
ES1C-13-F
2
D4,D24
SMAJ58CA
TVS DIODE 58VWM
93.6VC SMA
Diodes Inc.
SMAJ58CA
2
D6,D21
1N4148W
DIODE SW 100V 0.15A
SOD123 SMT
Diodes Inc.
1N4148W-7-F
1
D7
BAT54SLT1G
Diode Schottky Dual
200mA 30V
230mWSOT23 BAT54S
ON Semiconductor
BAT54SLT1G
3
D8,D25,D27
MBR0540T1G
DIO SCHOTTKY 40V
500mASOD123 REC. SMT
ON Semiconductor
MBR0540T1G
1
D10
B2100-13-F
DIODE SCHOTTKY 100V
2A SMB
Diodes Inc.
B2100-13-F
5
D14,D15,
D16,D19,
D20
SSC-GR101
LED SuperGreen 16mcd
h=0.8 0603 SMD
SEOUL
SSC-GR101
1
D22
BAV21W-V
DIODE SWITCH 200V
100MW SOD123 -
BAV21W
Vishay
BAV21W-V
1
D23
SMAJ78CA
DIODE TVS 78V SMA
Littelfuse
SMAJ78CA
1
D26
ES1C
DIODE SUPER FAST 150V
1A SMA SMT
Fairchild
ES1C
Copyright © 2016 Microsemi Page 19 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
1
D28
SMAJ58A
DIO TVS 58V 40A
SRG400WPK SMA SMT
STMicroelectronics
SMAJ58A
1
D29
TL431AIDBZR
IC VREF SHUNT PREC ADJ
SOT23-3 36V SMT
Texas Instruments
TL431AIDBZR
4
D32,D33,
D34, D35
SMBJ58CA
DIO TVS 58V 6.4A 600W
DO-214AA SMT
Bourns
SMBJ58CA
1
J1
08261X1TGH-F
CONN MAGJACK 1PORT
1000 BASE-T
Bel Stewart
08261X1TGH-F
1
J2
RAPC712X
DC Power Jack 16V 5A TH
Pin dia 2.5mm
Switchcraft
RAPC712X
1
J3
ED500/2DS
TERMINAL BLOCK 5MM
2POS PCB
On Shore
ED500/2DS
1
J4
RJ45
CON RJ45 SINGLE 8 POS.
SHILDED
Bel Stewart
SS71800-007F
1
L1
1uH
INDUCTOR SHIELDED
PWR 1UH IRMS=11A SMT
Bourns
SRP7030-1R0M
1
L2
10uH
FIXED IND 10UH 16A
7.96mOHM SMD
WURTH ELC.
7443631000
1
L3
4.7mH
FIXED IND 4700uH 40mA
48OHM SMD
Bourns
SDR0503-472JL
1
Q1
FDMS86202
MOSFET N-ch 120V 64A
7.2mOhm Power-56 SMT
Fairchild
FDMS86202
1
Q3
FDMS86101
MOSFET N-CH 100V
8mOhm Power-56 SMT
Fairchild
FDMS86101
1
Q2
FDMS86250
MOSFET 150V 25mOhm
N-ch Power-56
Fairchild
FDMS86250
1
Q8
ZVP3310FTA
MOSFET P-CH 100V
75MA SOT23-3
Diodes Inc.
ZVP3310FTA
2
Q9,Q16
FDS86242
IC, N-CH POWER MOSFET
150v 4.1A SO8
Fairchild
FDS86242
1
Q10
BSS123
FET NCH 100V 0.15A
Logic Level SOT23
Infineon
BSS123
1
Q18
FMMT549
TRN PNP -30V -1A SOT23
Fairchild
FMMT549
2
Q20,Q21
FMMT624
Transistor NPN 125V 1A
SOT23
Fairchild
FMMT624
1
R3
24.9K
RES TK FLM 24.9K
100mW1% 0805
Bourns
CR0805-FX-2492-ELF
2
R4,R133
22.1
RES TCK FLM 22.1R
62.5mW 1% 0603 SMT
Yageo
RC0603FRF0722R1
4
R8,R10,
R64,R131
10K
RES 10K 62.5mW 1%
0603 SMT MTL FLM
Rohm
MCR03EZPFX1002
3
R9,R85,
R130
0
RES TCK FLM 0R 62.5mW
5% 0603 SMT
Panasonic
ERJ3GEY0R00V
2
R11,R15
100
RES TCK FLM 100R
62.5mW 1% 0603 SMT
Yageo
RC0603FR-07100RL
Copyright © 2016 Microsemi Page 20 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
1
R12
0.03
RES TCK FLM 0.03 OHM
0.5W 1% 1206 SMT
Stackpole
CSR1206FK30L0
1
R14
20
Resistor, 20 OHM 5%
1/10W 0603
Rohm
MCR03EZPJ200
3
R16,R28,
R69
2.49K
RES 2.49K 62.5mW 1%
0603 SMT MTL FLM
Samsung
RC1608F2491CS
1
R18
60.4K
RES TCK FLM 60.4K
62.5mW 1% 0603 SMT
ASJ
CR16-6042FL
1
R19
90.9K
Resistor, 90.9K, 1%,
1/16W 0603
Rohm
MCR03EZPFX9092
1
R20
9.53K
RES 9.53K 125mW %
0805 SMT MTL FLM
Samsung
RC2012F9531CS
1
R21
30.9
Resistor, 30.9R 1%,
1/10W 0603
Panasonic
ERJ3EKF30R9V
2
R22,R50
2.94K
Resistor, 2.94K, 1%,
1/16W
Rohm
MCR03EZPF2941
2
R23,R55
5.1K
RES TCK FLM 5.1K
62.5mW 1% 0603 SMT
Vishay
CRCW06035K1FKEA
1
R24
1K
RES 1K 62.5mW 1% 0603
SMT MTL FLM
Panasonic
ERJ3EKF1001V
3
R25,R26,
R31
0
RES TCK FLM 0R 62.5mW
5% 0603 SMT
Rohm
MCR03EZPJ000
3
R27,R65,
R70
100K
RES 100K 62.5mW 1%
0603 SMT MTL FLM
Samsung
RC1608F1003CS
2
R29,R52
100K
Resistor, 100K, 5%,
1/16W
ASJ
CR16-104JL
1
R30
53.6K
RES TCK FLM 53.6K
62.5mW 1% 0603 SMT
Samsung
RC1608F5362CS
2
R33,R34
562K
RES 562K, 1%, 1/16W,
0603
Vishay
CRCW0603562KFKEA
1
R36
18.7K
Resistor, 18.7K, 1%,
1/16W 0603
Rohm
MCR03EZPFX1872
1
R37
2K
RES 2K 62.5mW 1% 0603
SMT MTL FLM
Vishay
CRCW06032KFKEA
1
R47
30.1K
RES 30.1K 250mW
1%1206 SMT MTL FLM
Yageo
RC1206FR-0730K1L
4
R48,R49,
R57,R58
5.11K
RES TCK FLM 5.11K
250mW1% 1206 SMT
Samsung
RC3216F5111CS
1
R51
100
Resistor, 100 Ohm, 5%,
1/16W 0603
Samsung
RC1608J101CS
4
R60,R61,
R62,R63
75
RES 75R 125mW 1%
0805SMT
Yageo
RC0805FK-0775RL
3
R67,R87,
R132
20
RES 20 OHM 1/2W 5%
1210 SMT
KOA
RK73B2ETTD200J
1
R84
4.75
RES 4.75R 0.1W 1% 0603
SMT MTL FLM
Vishay
CRCW06034R75FKEA
Copyright © 2016 Microsemi Page 21 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
1
R89
11K
RES 11K 125mW 1% 0805
SMT MTL FLM
Yageo
RC0805FR-0711KL
1
R90
4.02K
Resistor, 4.02K, 1%,
1/16W 0603
Panasonic
ERJ3EKF4021V
2
R92,R93
150K
RES 150K 125mW % 0805
SMT MTL FLM 100 ppm
Panasonic
ERJ6ENF1503V
2
R94,R95
13K
Resistor, 13K, 1%, 1/16W
0603
ASJ
CR16-1302FL
3
R126,R127,
R128
0
RES 0R 250mW 5% 1206
SMT JUMPER<0.05R
Samsung
RC3216J000CS
1
R129
2.7
Resistor, SMT 2.7 Ohm,
5%, 1/16W 0603
Panasonic
ERJ3GEYJ2R7V
1
T1
N/A
Transformer 12V 72W
forward 180 uH
ICE Components
TX15061
Alternate source
Shinhom
STEFD25-005
1
T2
296u
Transformer, Gate driver
SMT 269uH 0.795 DCR
Coilcraft
DA2319-AL
1
T6
1.47mH
Inductor common mode
1.47mH 2.8A SMD
Pulse
P0351
1
U1
PD70224
Ideal Diode Bridg dual
bridge 6x8 SMT PD70224
Microsemi
PD70224ILQ-TR
1
U2
PD70211
IEEE 802.3
AF/AT,HDbaseT Powere
Device PD70211
Microsemi
PD70211ILQ-TR
1
U3
FOD817ASD
OPTOISOLATOR 5KV
TRANSISTOR 4 SMD
Fairchild
FOD817ASD
1
VR1
15V
DIODE ZENER 15V
500mW SOD123
MMSZ4702
Fairchild
MMSZ4702
1
VR3
12V
DIO ZENER 12V 500mW
SOD123 SMT
Diodes Inc.
BZT52C12-7-F
1
VR4
12V
DIO ZENER 12V 500mW
SOD123 SMT
Diodes Inc.
BZT52C12-7-F
12
TP1,TP2,TP3,
TP4, 4P_HD,
4P_AT,
VPOE-,
VPOE+,
VINRTN,
VIN+,
HD_FLAG,
AT_FLAG
HK-2-G-S05
TEST POINT TIN PLATED
HEAD
MAC-8
K0-HK2H-S00
Parts may be replaced by approved equivalents.
Copyright © 2016 Microsemi Page 22 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
9 Board Layout
This section presents the layout of the evaluation board.
The board is a 2 layer board. All layers are 2 Oz copper. Below figures present the copper layers and the silk of the
board for tracking devices placements.
Figure 15: Top Silk and Solder Mask
Figure 16: Bottom Silk and Solder Mask (Image Looking From Bottom)
Copyright © 2016 Microsemi Page 23 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
Figure 17: Top Layer
Figure 18: Bottom Layer
Copyright © 2016 Microsemi Page 24 of 24
Rev.1.01, 28-June-2016 CPG – PoE BU
One Enterprise, Aliso Viejo, CA 92656, USA
PD70211EVB72FW-12
72W Isolated Forward Converter PD
Evaluation Board
The information contained in the document (unless it is publicly available on the Web without access restrictions) is
PROPRIETARY AND CONFIDENTIAL information of Microsemi and cannot be copied, published, uploaded,
posted, transmitted, distributed or disclosed or used without the express duly signed written consent of Microsemi.
If the recipient of this document has entered into a disclosure agreement with Microsemi, then the terms of such
Agreement will also apply. This document and the information contained herein may not be modified, by any
person other than authorized personnel of Microsemi. No license under any patent, copyright, trade secret or other
intellectual property right is granted to or conferred upon you by disclosure or delivery of the information, either
expressly, by implication, inducement, estoppels or otherwise. Any license under such intellectual property rights
must be approved by Microsemi in writing signed by an officer of Microsemi.
Microsemi reserves the right to change the configuration, functionality and performance of its products at anytime
without any notice. This product has been subject to limited testing and should not be used in conjunction with life-
support or other mission-critical equipment or applications. Microsemi assumes no liability whatsoever, and
Microsemi disclaims any express or implied warranty, relating to sale and/or use of Microsemi products including
liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent,
copyright or other intellectual property right. Any performance specifications believed to be reliable but are not
verified and customer or user must conduct and complete all performance and other testing of this product as well
as any user or customers final application. User or customer shall not rely on any data and performance
specifications or parameters provided by Microsemi. It is the customer’s and user’s responsibility to independently
determine suitability of any Microsemi product and to test and verify the same. The information contained herein is
provided “AS IS, WHERE IS” and with all faults, and the entire risk associated with such information is entirely with
the User. Microsemi specifically disclaims any liability of any kind including for consequential, incidental and
punitive damages as well as lost profit. The product is subject to other terms and conditions which can be located
on the web at http://www.microsemi.com/company/terms-and-conditions
Revision History
Revision Level / Date
Par. Affected/Page
Description
1.01 / 28-June-16
Initial release
© 2016 Microsemi Corp.
All rights reserved.
For support contact: PoEsupport@microsemi.com
Visit our web site at: www.microsemi.com Catalog Number: PD70211EVB72FW-12_UG_EVB