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reference designFDMQ8205 | Demoboard FEBFDMQ8205_90W

Onsemi FDMQ8205 | Demoboard FEBFDMQ8205_90W

GreenBridge for Power Over Ethernet

Overview

TopologyFlyback Converter
Input voltage42.5-57 V
Output 13.3 V / 27 A
IC revision0.1.0

Description

GreenBridge™ FDMQ8205 evaluation board highlights the polarity protection bridge at input of PoE (Power over Ethernet) PD (Power device) so that the input will be insensitive to the polarity of a power source coupled to the device. The device itself may be sensitive to the polarity of the power source, but bridge rectifier can be configured to provide the proper polarity to the device when the polarity of the power source is reversed. GreenBridge replaces the conventional diode bridge to reduce the power dissipation caused by the large voltage drop of a diode bridge, resulting in a high efficiency power device while not compromising IEEE802.3af/at. The small package size of MLP4.5x5 reduces PCB area and increases power density.

Features

Active MOSFET bridge with low forward drop to replace conventional diode bridge IEEE802.3af/at compliant

  • . Not compromise PoE detection and classification
  • . Works with 2 and 4-pair architecture Enhanced thermal performance package of 4x4.5mm MLP Wide operating voltage range up to 70V

Typical applications

  • Power over Ethernet (PoE) Power device (PD)

Products

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Order Code
Data­sheet
Replacement Order Code
Simu­lation
Downloads
Status
Product series
xPxC
Type
Shielding
Tab
EMI
Application System
Working Voltage(V (AC))
Packaging
L(µH)
n
IR(A)
∫Udt(µVs)
VT(V (AC))
RDC 1(mΩ)
RDC 2(Ω)
Data rate
Ports
PoE
Improved CMRR
Operating Temperature
Mount
SamplesAvailability & Sample
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61500814221
SPECWR-MJ Cat 3 Modular Jacks – THT, 8P8C, Horizontal
Replacement Order Code–
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-MJ Cat 3 Modular Jacks – THT
Number of Pins (xPxC)8P8C 
TypeHorizontal 
ShieldingShielded 
Tab PositionDown 
EMI FingersNo 
Application SystemCAT 3 
Working Voltage120 V (AC)
PackagingTray 
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–
Rated Current1.5 A
–
–
–
–
–
Ports1x1 
–
–
Operating Temperature -40 °C up to +85 °C
MountTHT 
–Check availability
749251100
SPECWE-CST Current Sense Transformer, –, –
Replacement Order Code–
Simu­lation
Availability
–
Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CST Current Sense Transformer
–
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–
–
–
–
–
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Inductance2000 µH
Turns Ratio1:100 
Rated Current20 A
Voltage-µSecond50 µVs
Insulation Test Voltage500 V (AC)
DC Resistance 10.75 mΩ
DC Resistance 25.5 Ω
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–
–
–
Operating Temperature -40 °C up to +125 °C
MountSMT 
–Check availability
749022016i
SPECWE-LAN LAN Transformer, –, –
Replacement Order Code 7490220125
Simu­lation–
Availability
–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
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–
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Inductance350 µH
Turns Ratio1:1 
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Insulation Test Voltage1500 V (AC)
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Data rate1000BASE-T 
Ports1 
PoEPoE+ (up to 1150 mA) 
Improved Common Mode RejectionNo 
Operating Temperature 0 °C up to +70 °C
MountSMT