Bridge Rectifiers. FDMQ8205 Datasheet

FDMQ8205 Datasheet PDF, Equivalent


Part Number

FDMQ8205

Description

2 Series of High-Efficiency Bridge Rectifiers

Manufacture

Fairchild Semiconductor

Total Page 10 Pages
PDF Download
Download FDMQ8205 Datasheet PDF


FDMQ8205 Datasheet
September 2016
FDMQ8205
GreenBridgeTM 2 Series of High-Efficiency Bridge Rectifiers
Features
„ Low Power Loss GreenBridgeTM Replaces Diode Bridge
„ Self Driving Circuitry for MOSFETs
„ Low rDS(on) 80V Rated MOSFETs
„ Maximizing Available Power and Voltage
„ Eliminating Thermal Design Problems
„ IEEE802.3at Compatible
- Meet Detection and Classification Requirement
- Work with 2 and 4-pair Architecture
- Small Backfeed Voltage
„ Compact MLP 4.5x5 Package
Applications
„ Power over Ethernet (PoE) Power Device (PD)
- IP Phones
- Network Cameras
- Wireless Access Points
- Thin Clients
- Microcell
- Femtocell
General Description
FDMQ8205 is GreenBridgeTM2 series of quad MOSFETs for a
bridge application so that the input will be insensitive to the po-
larity of a power source coupled to the device. Many known
bridge rectifier circuits can be configured using typical diodes.
The conventional diode bridge has relatively high power loss that
is undesirable in many applications. Especially, Power over
Ethernet (PoE) Power Device (PD) application requires high-effi-
ciency bridges because it should be operated with the limited
power delivered from Power Source Equipment (PSE) which is
classified by IEEE802.3at. FDMQ8205 is configured with low
rDS(on) dual P-ch MOSFETs and N-ch MOSFETs so that it can re-
duce the power loss caused by the voltage drop, compared to the
conventional diode bridge. FDMQ8205 enables the application to
maximize the available power and voltage and to eliminate the
thermal design problems in PoE PD applications.
FDMQ8205 GreenBridgeTM2 is compatible with IEEE802.3at
PoE standard by not compromising detection and classification
requirement as well as small backfeed voltage.
Package Marking and Ordering Information
Device Marking
FDMQ8205
Device
FDMQ8205
Package
MLP4.5x5
Reel Size
13 ”
Tape Width
12 mm
Quantity
3000 units
©2016 Fairchild Semiconductor Corporation
FDMQ8205 Rev.1.2
1
www.fairchildsemi.com

FDMQ8205 Datasheet
Typical Application
  RJ45
C onnector
1
2
3
POU T
G3 G2
FD MQ8205
IN PUT2
I NPU T1
G4 G1
6 N OU T
4
POU T
5
G3 G2
7 FDMQ8205
IN PUT2
I NPU T1
8
G4 G1
N OU T
VO UT P
TVS 0.1u F PoE PD
I nt erface
22uF Is olated
D C/D C
C onver ter
VOU T+
VO U T-
VOU TN
Figure 1. Typical Application of Power Device for Power over Ethernet
Block Diagram
 
OUTP
Q3
G3 Gate
driver
OUTP
Q2
Gate
driv er
G2
Q4
Gate
G 4 driver
Q1
Gate
driv er
G1
OUTN
INPUT2
INPUT1
OUTN
Figure 2. Block Diagram
©2016 Fairchild Semiconductor Corporation
FDMQ8205 Rev.1.2
2
www.fairchildsemi.com


Features Datasheet pdf FDMQ8205 - GreenBridgeTM2 Series of High -Efficiency Bridge Rectifiers Septembe r 2016 FDMQ8205 GreenBridgeTM 2 Serie s of High-Efficiency Bridge Rectifiers Features „ Low Power Loss GreenBridge TM Replaces Diode Bridge „ Self Drivin g Circuitry for MOSFETs „ Low rDS(on) 80V Rated MOSFETs „ Maximizing Availab le Power and Voltage „ Eliminating The rmal Design Problems „ IEEE802.3at Com patible - Meet Detection and Classifica tion Requirement - Work with 2 and 4-pa ir Architecture - Small Backfeed Voltag e „ Compact MLP 4.5x5 Package Applicat ions „ Power over Ethernet (PoE) Power Device (PD) - IP Phones - Network Came ras - Wireless Access Points - Thin Cli ents - Microcell - Femtocell General D escription FDMQ8205 is GreenBridgeTM2 s eries of quad MOSFETs for a bridge appl ication so that the input will be insen sitive to the polarity of a power sourc e coupled to the device. Many known bri dge rectifier circuits can be configure d using typical diodes. The conventional diode bridge has relat.
Keywords FDMQ8205, datasheet, pdf, Fairchild Semiconductor, 2, Series, of, High-Efficiency, Bridge, Rectifiers, DMQ8205, MQ8205, Q8205, FDMQ820, FDMQ82, FDMQ8, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)