IC reference design search
IC manufacturers Onsemi

IC manufacturers (105)

reference designFDMQ8205A | Demoboard FDMQ8205A4PPOE90WGEVB

Onsemi FDMQ8205A | Demoboard FDMQ8205A4PPOE90WGEVB

GreenBridge™ for Power over Ethernet (PoE)

Overview

TopologyForward Converter
Input voltage42.7-57 V
Output 13.3 V / 27 A
IC revision1.0

Description

The GreenBridge™ FDMQ8205A evaluation board demonstrates the polarity protection bridge commonly used at the input of a Power over Ethernet (PoE) Power Device (PD). The protection bridge is used to protect the PD and make it insensitive to the polarity of a power source coupled to the PD. The PD itself may be sensitive to the polarity of the power source, but the bridge rectifier can be configured to provide the proper polarity to the device when the polarity of the power source is reversed. The GreenBridge™ can replace the conventional diode bridge and drastically reduce the power dissipation caused by the large voltage drop of a diode bridge, resulting in a high efficiency power device while not compromising the IEEE802.3at specification. 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 Self driving circuitry for MOSFETs Low rDS(on) 100V MOSFETs Maximizing available power and voltage IEEE802.3at compliant

  • Does not compromise PoE detection and classification
  • Small Backfeed voltage Works with 4-pair architecture for POE++ Enhanced thermal performance package of 4.5x5 mm MLP Wide operating voltage range up to 70 V

Typical applications

  • IP Phones,Thin Clients,Microcell,Femtocell,Point of Sales
  • LED lighting
  • Network Cameras,Wireless Access Points

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
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
Log in now to view availability and request availability forecasts. LOGIN
61500814221
SPECWR-MJ Cat 3 Modular Jacks – THT, 8P8C, Horizontal
Simu­lation–
Availability
–
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 
–
–
Rated Current1.5 A
–
–
–
–
–
Ports1x1 
–
–
Operating Temperature -40 °C up to +85 °C
MountTHT 
–Check availability
749251100
SPECWE-CST Current Sense Transformer, –, –
Simu­lation
Availability
–
Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CST Current Sense Transformer
–
–
–
–
–
–
–
–
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
–
–
–
–
Operating Temperature -40 °C up to +125 °C
MountSMT 
–Check availability
749022016
SPECWE-LAN LAN Transformer, –, –
Simu­lation
Availability
–
Downloads4 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
–
–
–
–
–
–
–
–
Inductance350 µH
Turns Ratio1:1 
–
–
Insulation Test Voltage1500 V (AC)
–
–
Data rate1000BASE-T 
Ports1 
PoEPoE+ (up to 1150 mA) 
Improved Common Mode RejectionNo 
Operating Temperature 0 °C up to +70 °C
MountSMT 
–Check availability