IC manufacturers Onsemi

IC manufacturers (95)

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

Products

Order Code Data­sheet Simu­lation Downloads Product seriesxPxCTypeMountApplication SystemL
(µH)
nIR
(A)
∫Udt
(µVs)
VT
(V (AC))
RDC 1
(mΩ)
RDC 2
(Ω)
Samples
61500814221SPEC
6 files WR-MJ Modular Jack Horizontal Shielded 8P8C Tab Down 8P8C Horizontal THT CAT 3 1.5
749251100SPEC
8 files WE-CST Current Sense Transformer SMT 2000 1:100 20 50 500 0.75 5.5
749022016SPEC
10/100/1000 Base-T SMT Transformer SMT 350 1500
Order Code Data­sheet Simu­lation
61500814221SPEC
749251100SPEC
749022016SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesxPxCTypeMountApplication SystemL
(µH)
nIR
(A)
∫Udt
(µVs)
VT
(V (AC))
RDC 1
(mΩ)
RDC 2
(Ω)
Samples