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Is Now Part of
ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
© 2012 Fairchild Semiconductor Corporation FEBFDMQ8203_13W • Rev. 1.0.0
User Guide for
FEBFDMQ8203_13 W GreenBridge™ Evaluation Kit
for Power Over Ethernet 13 W Flyback DC-DC
MLP 4.5x5 GreenBridge™ SSOT-6 150 V MOSFET SSOT-3 30 V MOSFET
Featured Fairchild Products:
FDMQ8203, FDC86244, FDN537N
Direct questions or comments about this evaluation board to:
“Worldwide Direct Support”
Fairchild Semiconductor.com
© 2012 Fairchild Semiconductor Corporation 2 FEBFDMQ8203_13W • Rev. 1.0.0
Table of Contents
1. Introduction ............................................................................................................................... 3
1.1. Description ....................................................................................................................... 3 1.2. Features ............................................................................................................................ 3
2. Evaluation Board Specifications ............................................................................................... 3
3. Photographs............................................................................................................................... 4
4. Printed Circuit Board ................................................................................................................ 5
5. Schematic .................................................................................................................................. 6
6. Bill of Materials ........................................................................................................................ 8
7. Electrical Characteristics ........................................................................................................ 10
8. Setup and Test Procedure ........................................................................................................ 11
8.1. Hardware Connector Description ................................................................................... 11
9. Performance of Evaluation Board ........................................................................................... 12
10. Revision History ..................................................................................................................... 13
© 2012 Fairchild Semiconductor Corporation 3 FEBFDMQ8203_13W • Rev. 1.0.0
The following user guide supports the evaluation kit for high-efficiency, IEEE802.3af, Class3 Power over Ethernet Power Device (PoE PD) Flyback DCDC with PoE interface controller. It should be used in conjunction with the FDMQ8203 datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at www.fairchildsemi.com.
1. Introduction This board is designed to rectify the positive and negative power source from Power Source Equipment (PSE) and regulate 48 V (36 V ~ 57 V) to provide 5 VOUT at maximum 2.6 A with 250 kHz switching frequency and over 90% of the total efficiency in the compact power density. It meets the required specification under IEEE802.3af.
1.1. Description This kit contains the MLP 4.5x5 GreenBridge™ MOSFET evaluation board.
1.2. Features GreenBridge™ FDMQ8203 quad P&N-Channel MOSFET Flyback Primary Switch FDC86244 Single N-Channel MOSFET Flyback Secondary Switch FDN537N Single N-Channel MOSFET Controller IEEE802.3at PD with Flyback Controller Output-Voltage Range 5 V, Adjustable by R39 and R37 Switching Frequency 250 kHz, Adjustable by C55 Maximum Output Current 2.6 A, Limited by Power Component
2. Evaluation Board Specifications Table 1. MOSFET Parameters
Part Number
Location Package BVDSS (V)
RDS(ON) [mΩ]
at 10 VGS
Qg [nC]
at 10 VGS COSS [pF]
Max. Typ. Typ.
FDMQ8203 Q1, Q4
MLP4.5x5 100 110 2.9 41.0
Q2, Q3 -80 190 13 46
FDC86244 Single SSOT-6 150 144.0 4.2 32.0
FDN537N Single SSOT-3 30 28 5.3 135
© 2012 Fairchild Semiconductor Corporation 4 FEBFDMQ8203_13W • Rev. 1.0.0
3. Photographs Size = 70 X 60 mm.
Figure 1. Top Side View of Evaluation Kit
Figure 2. Bottom Side View of Evaluation Kit
© 2012 Fairchild Semiconductor Corporation 5 FEBFDMQ8203_13W • Rev. 1.0.0
4. Printed Circuit Board PCB Layout (70 mm x 60 mm, 4-Layer).
Figure 3. SST (Component Side) Layer Figure 4. SSB (Component) Layer
Figure 5. TOP & SMT Layer Figure 6. BOT & SMB Layer
Figure 7. INNER1 (GND) Layer Figure 8. INNER2 (POWER) Layer
© 2012 Fairchild Semiconductor Corporation 6 FEBFDMQ8203_13W • Rev. 1.0.0
5. Schematic
Figure 9. GreenBridge™ Block Schematic
J28
sup
porter
11
J29
supp
orte
r
11
J31
supp
orter
11
J3
0s
upp
orter
11
C69
1nF
C7
01
nF
P4
8V
R62
NC
R61
0
R6
3N
C
T2P
34 5
75Ohm X 4
12nF X 4 2
1000pF / 2KV
D63
SM
AJ
58A
C7
30.0
82uF
/100
V
J11
MID
+ 11
N48
V
J12
MID
- 11
P4
8V
N48
V
R5
22
0K
R5
3
20K
Q4
1M
MB
T22
22A
Q4
2M
MB
T290
7A
D50
MM
5Z1
0VD
51
1N
414
8WS
D5
21
N41
48W
SD
53
MM
5Z
10V
R5
42
0K
R5
52
0KR
59
20K
Q4
3M
MB
T22
22A
Q4
4M
MB
T29
07A
D54
MM
5Z1
0V
D5
61N
4148
WS
D5
51N
4148
WS
D57
MM
5Z1
0VQ
45F
DM
Q8
203
1 2 3 4 5 6789101112
13141516
R56
20K
R57
20K
Q46
MM
BT2
222
A
Q47
MM
BT
2907
A
D5
8M
M5
Z10
VD
59
1N41
48W
S
D6
01
N41
48W
SD
61
MM
5Z10
VQ
48
FD
MQ
820
3
1 2 3 4 5 6789101112
13141516
R5
8
20K
Q4
9M
MB
T22
22A
Q5
0M
MB
T29
07A
D4
71N
414
8WS
D46
MM
5Z
10V
D4
81
N41
48W
SD
49M
M5Z
10V
P48
V
J7
RX
CT 1
1
J8
TXC
T 11
R6
02
0k
OUT TO PHY
IN FROM PSE
8 1
J23
082
6-1x1
t-gh-f
TRC
T3
1
TR
D3
-2
TRD
3+
3
TRD
2+
4
TR
D2
-5
TRC
T2
6
TRC
T4
7TR
D4
+8
TR
D4
-9
TR
D1
-1
0TR
CT
11
2TR
D1
+1
1
TXC
T1
3
RX
CT
14
MID
+1
5
MID
-1
6
SHIELD22 SHIELD21
YELLOW_C17
YELLOW_A18
GREEN_C19
GREEN_A20
67
C7
11n
F
C72
1n
FC
74
1nF
C7
51n
F
C7
61
nFC77
1nF
© 2012 Fairchild Semiconductor Corporation 7 FEBFDMQ8203_13W • Rev. 1.0.0
Figure 10. PoE Power Device Controller and Flyback DC-DC Block Schematic
R19
20
R20
20K/2012
C43
22uF/16V
/1210
0
0
L5PE
-68386N
L
R2
24.7
+
10uF/100V C24
R26
12K
C25
2.2uF
/100V/1210
N48V
P4
8VR
27150/2012
C52
2.2nF
D7
MB
R0540
R28
47
C53
1.5nF
R29
5.1
R30
NC
C54
3.3nF
U4
LTC4269-1
SH
DN
1
T2P2
RC
LAS
S3
NC
4
VP
OR
TN5
VP
OR
TN6
NC
7
NC
8
SG
9
Vc
c10
ton11
EN
DLY
12
SY
NC
13
SF
ST
14
OS
C15
FB
16V
CM
P17
UV
LO18
SE
NS
E-
19S
EN
SE
+20
CC
MP
21R
CM
P22
RG
DLY
23P
G24
NC
25V
NE
G26
VN
EG
27N
C28
PW
RG
D29
PW
RG
D_B
AR
30N
C31
VP
RO
TP32
GND33
C55
33pFR
3110k
T2PO
E13P
-50L
1 24 3
8 7 9 10
J21P
WR
GD
11
R32
NC
C56
NC
C57
1nFR
3314K
1%
R34
39K 1%
R35
30ohm 1%
0.1uF
C59
R36
100k
C60
22uF/16V
/1210
PC
P201
NC
C61
4700pF
/250V/1808
C62
100pF/2012
R37
3K
1%
0 R38
0.03 1/2W
R39
27K 1%
Q12
MM
BT2222A
Q11
MM
BT2907A
R40
750
C64
1uF
C6
31uF
R41
39K
D8
MB
R0540
R4
215
R43
10K
C6
6
22uF
/16V/1210
C65
22uF/16V
/1210
R44
100
J17V
PO
RT_P
11
L6
SD
6020-8r9
J18
VP
OR
T_N 11
C67
1uF
0
J22-V
out
11
J19+V
out
11
Q6
FD
C86244
3
25
1
64
Q7
FD
N53
7N
.1
.2
.3
T2P
J16G
ND 1
1
0
D6
BA
S21
© 2012 Fairchild Semiconductor Corporation 8 FEBFDMQ8203_13W • Rev. 1.0.0
6. Bill of Materials Table 2. Bill of Materials
Item Qty. Reference Part Name Vender Comment
1 1 C24 EEE2AA100UP Panasonic 10 µF / 100 V
2 1 C25 GRM32ER72A225KA35 Murata 2.2 µF / 100 V
3 4 C43, C60, C65, C66 C3225X7RIC226M TDK 22 µF / 16 V / 3216
4 1 C52 2.2 nF / 1608 Any
5 1 C53 1.5 nF / 1608 Any
6 1 C54 3.3 nF / 1608 Any
7 1 C55 33 pF / 1608 Any
8 6 R30, R32, C56, R62,
R63, PCP201 NC
9 9 C57, C69, C70, C71,
C72, C74, C75, C76, C77 1 nF / 1608 Any
10 1 C59 0.1 µF / 1608 Any
11 1 C61 GA343D Murata 4700 pF / 250 V
12 1 C62 100 pF / 2012 Any
13 3 C63, C64, C67 1 µF / 1608 Any
14 1 C73 C0805C823K1RACTU Kemet 0.082 µF / 100 V
15 1 D6 BAS21 Fairchild Semiconductor
16 2 D7, D8 MBR0540 Fairchild Semiconductor
17 8 D46, D49, D50, D53,
D54, D57, D58, D61 MM5Z10V Fairchild Semiconductor 10 V Zener Diode
19 8 D47, D48, D51, D52,
D55, D56, D59, D60 1N4148WS Fairchild Semiconductor
20 1 D63 SMAJ58A Diodes TVS Diode
21 1 J23 0826-1G1T-GH-F Belfuse RJ45 with
Transformer
22 1 L5 PE-68386NL Pulse trans
23 1 L6 SD6020-8R9 Coiltronics 8.2 µH
24 1 Q6 FDC86244 Fairchild Semiconductor 150 V 144 mΩ
MOSFET
25 1 Q7 FDN537N Fairchild Semiconductor 30 V 28 mΩ
MOSFET
26 5 Q11, Q42, Q44, Q47, Q50 MMBT2907A Fairchild Semiconductor
27 5 Q12, Q41, Q43, Q46, Q49 MMBT2222A Fairchild Semiconductor
28 2 Q45, Q48 FDMQ8203 Fairchild Semiconductor GreenBridge™
Quad MOSFET
29 1 R19 20 Ω / 2012 Any
30 1 R20 20 kΩ / 2012 Any
31 1 R22 4.7 Ω / 1608 Any
32 1 R26 12 kΩ / 1608 Any
33 1 R27 150 Ω / 2012 Any
34 1 R28 47 Ω / 1608 Any
35 1 R29 5.1 Ω / 1608 Any
36 2 R31, R43 10 kΩ / 1608 Any
© 2012 Fairchild Semiconductor Corporation 9 FEBFDMQ8203_13W • Rev. 1.0.0
Bill of Materials (Continued)
Item Qty. Reference Part Name Vender Comment
37 1 R33 14 kΩ 1% / 1608 Any
38 1 R34 39 kΩ / 1% / 1608 Any
39 1 R35 45.3 Ω / 1608 Any
40 1 R36 100 kΩ / 1608 Any
41 1 R37 3 kΩ / 1% / 1608 Any
42 1 R38 0.03 mΩ / 0.5 W HMR Shunt Resistor
43 1 R39 24 kΩ / 1% / 1608 Any
44 1 R40 750 Ω / 1608 Any
45 1 R41 39 kΩ / 1608 Any
46 1 R42 15 Ω / 1608 Any
47 1 R44 100 Ω / 1608 Any
48 9 R52, R53, R54, R55,
R56, R57, R58, R59, R60 20 kΩ / 1608 Any
49 1 R61 0 Ω / 1608 Any
50 1 T2 POE13P-50L Coilcraft 13 W PoE
Transformer
51 1 U4 LTC4269-1 LTC PoE Flyback IC
© 2012 Fairchild Semiconductor Corporation 10 FEBFDMQ8203_13W • Rev. 1.0.0
7. Electrical Characteristics
Table 3. Electrical Specification
Parameter Value Remark
GreenBridge™ FDMQ8203 Quad P&N-Channel MOSFET, Fairchild Semiconductor
Flyback Primary Switch FDC86244 Single N-Channel MOSFET, Fairchild Semiconductor
Flyback Secondary Switch FDN537N Single N-Channel MOSFET, Fairchild Semiconductor
Controller IEEE802.3at PD with Flyback Controller
VOUT Range 5 V Adjustable by R39 and R37
Switching Frequency 250 kHz Adjustable by C55
Maximum IOUT 2.6 A Limited by Power Component
© 2012 Fairchild Semiconductor Corporation 11 FEBFDMQ8203_13W • Rev. 1.0.0
8. Setup and Test Procedure Table 4. Test Point Descriptions
Test Point Label Descriptions
J17 P48 V Measurement test point for rectified positive input voltage
J18 N48 V Measurement test point for rectified negative input voltage
J16 GND Measurement test point for input voltage return
J19 +VOUT Measurement test point for output voltage
J22 -VOUT Measurement test point for output voltage return
8.1. Hardware Connector Description The evaluation kit is fully assembled and tested. Follow the steps below to verify board operation.
1. Use one of the following methods to power the evaluation kit:
If network connectivity is required: Connect a CAT5 Ethernet network cable from the evaluation kit input port RJ45 connector to the corresponding PSE Ethernet LAN connection, which provides power to the evaluation kit. J21 connector provides an interface with the Ethernet data signals only.
If network connectivity is not required: Connect a -48 V DC power supply between the TXCT and RXCT. OR connect a -48 V DC power supply between the MID+ and MID-.
Caution: Do not turn on the power supply until all connections are completed.
2. Activate the PSE power supply or turn on the external DC power supply.
3. Using a voltmeter, verify that the evaluation kit provides +5 V across the +VOUT and –VOUT pins. –VOUT is isolated from the evaluation kit’s input N48 V and GND pins.
© 2012 Fairchild Semiconductor Corporation 12 FEBFDMQ8203_13W • Rev. 1.0.0
9. Performance of Evaluation Board Figure 11 and Figure 12 show measured data.
Figure 11. Efficiency & Power Loss at VOUT=5 V, Soaking=5 Minutes, fSW=250 kHz
Figure 12. Thermal Performance at VIN=48 V, VOUT=5 V, IOUT= 2.6 A, Soaking=5 Minutes,
fSW=250 kHz
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
78
80
82
84
86
88
90
92
0.5 0.8 1.1 1.4 1.7 2.0 2.3 2.6
Eff
icie
ncy
(%)
Load(A)
Efficiency & Power loss
36V Efficiency48V Efficiency57V Efficiency36V Power loss48V Power loss57V Power loss
GreenBridgeTM
FDMQ8203: 31°C
Flyback PrimaryFDC86244: 38.3°C
Flyback Secondary
FDN537N: 48.1°C
© 2012 Fairchild Semiconductor Corporation 13 FEBFDMQ8203_13W • Rev. 1.0.0
10. Revision History Rev. Date Description
0.1.0 February 13, 2012 Initial Release
1.0.0 November 28, 2012 Reformat to template Proofread and correct content
WARNING AND DISCLAIMER
Replace components on the Evaluation Board only with those parts shown on the parts list (or Bill of Materials) in the Users’ Guide. Contact an authorized Fairchild representative with any questions.
This board is intended to be used by certified professionals, in a lab environment, following proper safety procedures. Use at your own risk. The Evaluation board (or kit) is for demonstration purposes only and neither the Board nor this User’s Guide constitute a sales contract or create any kind of warranty, whether express or implied, as to the applications or products involved. Fairchild warrantees that its products meet Fairchild’s published specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to any products described herein to improve reliability, function, or design. Either the applicable sales contract signed by Fairchild and Buyer or, if no contract exists, Fairchild’s standard Terms and Conditions on the back of Fairchild invoices, govern the terms of sale of the products described herein.
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.
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These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations for the ultimate destination listed on the commercial invoice. Diversion contrary to U.S. law is prohibited.
U.S. origin products and products made with U.S. origin technology are subject to U.S Re-export laws. In the event of re-export, the user will be responsible to ensure the appropriate U.S. export regulations are followed.
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ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patentcoverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liabilityarising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/orspecifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customerapplication by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are notdesigned, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classificationin a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorizedapplication, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, andexpenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if suchclaim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. Thisliterature is subject to all applicable copyright laws and is not for resale in any manner.
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