onsemi NCP1081SPCGEVB Compact High Efficiency 30W Reference Platform User Manual
- June 13, 2024
- onsemi
Table of Contents
onsemi NCP1081SPCGEVB Compact High Efficiency 30W Reference Platform
Board Details
The NCP1081SPCGEVB implements a PoE power splitter that converts the voltage
on the Ethernet cable to a lower voltage. The board is equipped with 2 RJ45
connectors, one connector serves as the data and power input and the other
connector is the data output. Ethernet data is untouched by the board and
simply forwarded.
Warnings
Close to the switching MOSFET voltages on the board may exceed 200 V (@250
kHz). Temperature of board and its components may exceed 85°C during normal
operation. The Evaluation board was designed to operate correctly under these
conditions.
The input voltage should never exceed 57 V nor should the evaluation board be
loaded with loads higher than the specified 30 W. Exceeding the specified
input and output values could permanently damage the board.
Table 1. EVALUATION BOARD SPECIFICATIONS
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage, PoE Input | 36 | − | 57 | V |
| Output Voltage | − | 12 | − | V |
| Output Current | − | − | 2.5 | A |
| Oscillator Frequency | − | 250 | − | kHz |
| Output Ripple | − | − | 170 | mV |
| Efficiency | − | − | 88 | % |
Table 2. BOARD CONNECTOR DESCRIPTION
| Connector | Pin | Description |
|---|---|---|
| J4 | 1 | TX+/BI_DA+, Data and Power Input, Pair 1, Mode A |
| 2 | TX−/BI_DA−, Data and Power Input, Pair 1, Mode A | |
| 3 | RX+/BI_DB+, Data and Power Input, Pair 2, Mode A | |
| 4 | NC/BI_DC+, Data and Power Input, Pair 1, Mode B | |
| 5 | NC/BI_DC+, Data and Power Input, Pair 1, Mode B | |
| 6 | RX−/BI_DB−, Data and Power Input, Pair 2, Mode A | |
| 7 | NC/BI_DD+, Data and Power Input, Pair 2, Mode B | |
| 8 | NC/BI_DD−, Data and Power Input, Pair 2, Mode B | |
| J1 | 1 | TX+/BI_DA+, Data Output |
| 2 | TX−/BI_DA−, Data Output | |
| 3 | RX+/BI_DB+, Data Output | |
| 4 | NC/BI_DC+, Data Output | |
| 5 | NC/BI_DC+, Data Output | |
| 6 | RX−/BI_DB−, Data Output | |
| 7 | NC/BI_DD+, Data Output | |
| 8 | NC/BI_DD−, Data Output | |
| JOUT | 12V | 12 V Regulated Output |
| GND | GND Regulated Output | |
| 3 | 12 V Regulated Output |
NCP1081SPCGEVB
Table 3. BILL OF MATERIALS
Designator| Quantity| Description| Value| Tolerance|
Footprint| Manufacturer| Manufacturer Part Number|
Substitution Allowed| Lead Free
---|---|---|---|---|---|---|---|---|---
U1| 1| Power over Ethernet controller| NCP1081| | TSSOPEP 20| ON
Semiconductor| NCP1081DEG| No| Yes
C1,
C2,
C3,
C4,
Cf1
| 5| Capacitor SMD| 100n/50V| 10%| 0805-C-S| Walsin| 0805B104K500CT| Yes| Yes
Cf| 1| Capacitor Polar| 10u/20V| 10%| C-TANT-B| AVX| TAJB106K020R| Yes| Yes
Cfb1| 1| Capacitor SMD| 39n/50V| 10%| 0805-C-S| AVX| 08055C393KAT2A| Yes| Yes
Cfb2| 1| Capacitor SMD| 12n/50V| 10%| 0805-C-S| AVX| 08055C123KAT2A| Yes| Yes
Cgnd| 1| Capacitor SMD| 2200p/2kV| 10%| 1812| Walsin| 1812B222K202LT| Yes| Yes
Cline, Cpd1, Cpd2| 3| Capacitor SMD| 100n/100V| 10%| 1206-C| AVX|
12061C104KAT2A| Yes| Yes
Cout| 1| Capacitor Polar| 68u/25V/5 5mR| 10%| C-TANT-E| AVX| TPME686K025R0055|
No| Yes
Cpd| 1| Capacitor Polar| 100u/63V| 20%| CRD10.0L 17.0RM5.0| Hitano| EXR101M63|
No| Yes
Csn1| 1| Capacitor SMD| 100p/200V| 10%| 0805-C-S| AVX| 08052A101JAT2A| Yes|
Yes
Csn2| 1| Capacitor SMD| 470p/200V| 10%| 0805-C-S| AVX| 08052C47KJAT2A| Yes|
Yes
Css| 1| Capacitor SMD| 47n/50V| 10%| 0805-C-S| AVX| 08055C473KAT2A| Yes| Yes
Cvdd h| 1| Capacitor SMD| 2.2u/16V| (+80%)
to
(-20%)
| 0805-C-S| AVX| 0805YC225MAT2A| Yes| Yes
Cvddl| 1| Capacitor SMD| 470n/50V| 10%| 0805-C-S| AVX| 08055C474KAZ2A| No| Yes
T3| 1| PoE Plus Transformer| SM-00112| | EFD20| NUFLUX| SM-00112| No| Yes
Dbr1, Dbr2, Dbr3, Dbr4, Dbr5, Dbr6,| 6| SMD Schottky Rectifier| MBRS110 0T3G|
| 403A-03| ON Semiconductor| MBRS1100T3G| No| Yes
Dbw, Dgate| 2| SMD
Switching Diode
| BAS16HT 1G| | SOD323| ON Semiconductor| BAS16HT1G| Yes| Yes
Dsec| 1| SMD Schottky Rectifier| 12CWQ06 FNPBF| | DPAK| Vishay| 12CWQ06FNPBF|
No| Yes
Dsn, Dsn1| 2| SMD Ultrafast Rectifiers| MURS120 T3G| | 403A-03| ON
Semiconductor| MURS120T3G| No| Yes
Zbr3, Zbr4| 2| SMD Zener| MMSZ16T 1G| | SOD123| ON Semiconductor| MMSZ16T1G|
Yes| Yes
Zline| 1| SMD TVS Zener| 1SMA58A T3G| | SMA| ON Semiconductor / Multicomp|
1SMA58AT3G / SMAJ58A| Yes| Yes
Ztvs| 1| SMD TVS Zener| 1SMB100 AT3G| | 403A-03| ON Semiconductor / Multicomp|
1SMB100AT3G / SMAJ58A| Yes| Yes
J1, J4| 2| 8 Position 8 Contact (8P8C) modular jack communication s connector|
RJ45| | 95501-288
1
| MOLEX| 95501-2881| Yes| Yes
L1| 1| Drum Core Choke| 10uH/3A| | 10X12| Prismatic| 9404037403| No| Yes
Table 3. BILL OF MATERIALS
Desig- nator| Qua ntity| Description| Value| Toler-
ance| Footprint| Manufacturer| Manufacturer Part Number|
Substitution Allowed| Lead Free
---|---|---|---|---|---|---|---|---|---
Led| 1| LED| KP-2012S GC| | 0805-D-S| EVERLIGHT| 17-21SYGC/S530-E2/T R8| Yes|
Yes
Q1| 1| MOSFET N-CHANNEL| Si7462DP| | SOPP8| Vishay Siliconix| Si7462DP| No|
Yes
Q4| 1| MOSFET N-CHANNEL| FDS3992| | SO-8| Fairchild| FDS3992| No| Yes
Qgate| 1| Transistor PNP| BFT92| | SOT23| Philips| BFT92| Yes| Yes
Rbias 1, Rsl| 2| Resistor SMD| 5.1k| 5%| 0805-R-S| Walsin| WR08X512JTL| Yes|
Yes
Rbias 2| 1| Resistor SMD| 20k| 1%| 0805-R-S| Walsin| WR08X2002FTL| Yes| Yes
Rbr3, Rbr4, Rosc| 3| Resistor SMD| 150k| 1%| 0805-R-S| Walsin| WR08X1503FTL|
Yes| Yes
Rbw, Rsn2| 2| Resistor SMD| 75| 1%| 0805-R-S| Walsin| WR08X750JTL| Yes| Yes
Rclas s| 1| Resistor SMD| 30.1| 1%| 0805-R-S| Yageo| RC0805FR-0730R1L| Yes|
Yes
Rcs| 1| Resistor SMD| 0.1/3W| 1%| 2512-S| Bourns| CRA2512-FZ-R100ELF| Yes| Yes
Rdet1| 1| Resistor SMD| 24.9k| 1%| 0805-R-S| Walsin| WR08X2492FTL| Yes| Yes
Rdet2| 1| Resistor SMD| 845| 1%| 0805-R-S| Yageo| RC0805FR-07845RL| Yes| Yes
Rfb1| 1| Resistor SMD| 15k| 1%| 0805-R-S| Walsin| WR08X1502FTL| Yes| Yes
Rfb2| 1| Resistor SMD| 3.92k| 1%| 0805-R-S| Walsin| WR08X3921FTL| Yes| Yes
Rfb3| 1| Resistor SMD| 820| 1%| 0805-R-S| Yageo| RC0805FR-07820RL| Yes| Yes
Rgate| 1| Resistor SMD| 10| 1%| 0805-R-S| Walsin| WR08X10R0FTL| Yes| Yes
Rilim1| 1| Resistor SMD| 44.2K| 1%| 0805-R-S| Walsin| WR08X4422FTL| Yes| Yes
Rinru sh| 1| Resistor SMD| 121k| 1%| 0805-R-S| Walsin| WR08X1213FTL| Yes| Yes
Rled| 1| Resistor SMD| 1k| 5%| 0805-R-S| Yageo| RC080JR-07KL| Yes| Yes
Rsn1| 1| Resistor SMD| 330E /1W| 5%| 2512-S| Walsin| WR25X331JTL| Yes| Yes
T1, T2| 2| WE-LAN SMD-10/100 BASE T| POE+ 350uH OCL 720mA IDC| 2%| SMD| Wurth-
Elektronik| 749012011| No| Yes
U2| 1| HIGH ISOLATION VOLTAGE SSOP PHOTOCOUP LER| PS2801-1- F3-A| | SSOP4|
CEL| PS2801-1| No| Yes
U3| 1| Programmable Shunt Voltage Reference| TL432BID BZTG4| | SOT23| Texas-
Instruments| TL432BIDBZTG4| No| Yes
Csi| 1| Capacitor| NC| | 0805-C-S| | | |
Csn| 1| Capacitor| NC| | 1206-C| | | |
Zbr1, Zbr2| 2| SMD Zener| NC| | SOD123| ON Semiconductor| MMSZ16T1G| |
Rbr1, Rbr2| 2| Resistor SMD| NC| | 0805-R-S| | | |
Rdet1 ’| 1| Resistor SMD| NC| | 0805-R-S| | | |
Rsn| 1| Resistor SMD| NC| | 2512-S| | | |
Q2, Q3| 2| P-Channel 30V (D-S) MOSFET| NC| | POWERP ACK 1212-8| Vishay|
Si7113| |
onsemi, , and other names, marks, and brands are registered and/or common law
trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its
affiliates and/or subsidiaries in the United States and/or other countries.
onsemi owns the rights to a number of patents, trademarks, copyrights, trade
secrets, and other intellectual property. A listing of onsemi’s product/patent
coverage may be accessed at
www.onsemi.com/site/pdf/Patent−Marking.pdf.
onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is
subject to all applicable copyright laws and is not for resale in any manner.
The evaluation board/kit (research and development board/kit) (hereinafter the
“board”) is not a finished product and is not available for sale to consumers.
The board is only intended for research, development, demonstration and
evaluation purposes and will only be used in laboratory/development areas by
persons with an engineering/technical training and familiar with the risks
associated with handling electrical/mechanical components, systems and
subsystems. This person assumes full responsibility/liability for proper and
safe handling. Any other use, resale or redistribution for any other purpose
is strictly prohibited.
THE BOARD IS PROVIDED BY ONSEMI TO YOU “AS IS” AND WITHOUT ANY REPRESENTATIONS
OR WARRANTIES WHATSOEVER. WITHOUT LIMITING THE FOREGOING, ONSEMI (AND ITS
LICENSORS/SUPPLIERS) HEREBY DISCLAIMS ANY AND ALL REPRESENTATIONS AND
WARRANTIES IN RELATION TO THE BOARD, ANY MODIFICATIONS, OR THIS AGREEMENT,
WHETHER EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING WITHOUT LIMITATION
ANY AND ALL REPRESENTATIONS AND WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, TITLE, NON−INFRINGEMENT, AND THOSE ARISING FROM A COURSE
OF DEALING, TRADE USAGE, TRADE CUSTOM OR TRADE PRACTICE.
onsemi reserves the right to make changes without further notice to any board.
You are responsible for determining whether the board will be suitable for
your intended use or application or will achieve your intended results. Prior
to using or distributing any systems that have been evaluated, designed or
tested using the board, you agree to test and validate your design to confirm
the functionality for your application. Any technical, applications or design
information or advice, quality characterization, reliability data or other
services provided by onsemi shall not constitute any representation or
warranty by onsemi, and no additional obligations or liabilities shall arise
from onsemi having provided such information or services. onsemi products
including the boards are not designed, intended, or authorized for use in life
support systems, or any FDA Class 3 medical devices or medical devices with a
similar or equivalent classification in a foreign jurisdiction, or any devices
intended for implantation in the human body. You agree to indemnify, defend
and hold harmless onsemi, its directors, officers, employees, representatives,
agents, subsidiaries, affiliates, distributors, and assigns, against any and
all liabilities, losses, costs, damages, judgments, and expenses, arising out
of any claim, demand, investigation, lawsuit, regulatory action or cause of
action arising out of or associated with any unauthorized use, even if such
claim alleges that onsemi was negligent regarding the design or manufacture of
any products and/or the board. This evaluation board/kit does not fall within
the scope of the European Union directives regarding electromagnetic
compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL,
and may not meet the technical requirements of these or other related
directives.
FCC WARNING – This evaluation board/kit is intended for use for engineering
development, demonstration, or evaluation purposes only and is not considered
by onsemi to be a finished end product fit for general consumer use. It may
generate, use, or radiate radio frequency energy and has not been tested for
compliance with the limits of computing devices pursuant to part 15 of FCC
rules, which are designed to provide reasonable protection against radio
frequency interference. Operation of this equipment may cause interference
with radio communications, in which case the user shall be responsible, at its
expense, to take whatever measures may be required to correct this
interference. onsemi does not convey any license under its patent rights nor
the rights of others.
LIMITATIONS OF LIABILITY: onsemi shall not be liable for any special,
consequential, incidental, indirect or punitive damages, including, but not
limited to the costs of requalification, delay, loss of profits or goodwill,
arising out of or in connection with the board, even if onsemi is advised of
the possibility of such damages. In no event shall onsemi’s aggregate
liability from any obligation arising out of or in connection with the board,
under any theory of liability, exceed the purchase price paid for the board,
if any.
The board is provided to you subject to the license and other terms per
onsemi’s standard terms and conditions of sale. For more information and
documentation, please visit www.onsemi.com
Customer Service
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Email Requests to: orderlit@onsemi.com
onsemi Website: www.onsemi.com
TECHNICAL SUPPORT
North American Technical Support:
Voice Mail: 1 800−282−9855 Toll Free USA/Canada
Phone: 011 421 33 790 29
Europe, Middle East and Africa Technical Support:
Phone: 00421 33 790 2910
For additional information, please contact your local Sales Representative
Downloaded from Arrow.com.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>