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Overview
| Topology | Flyback Converter |
| Input voltage | 42.5-57 V |
| Output 1 | 10 V / 2.5 A |
| Output 2 | 5 V / 5 A |
| IC revision | 0.0.2 |
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
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Data rate | PoE | Ports | Tab | Improved CMRR | Operating Temperature | LED | PHY Chip Mode | Mount | Shield Tabs | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Power Inductor, 0.33 µH, 17.8 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance0.33 µH | Performance Rated Current17.8 A | Saturation Current @ 10%27.1 A | Saturation Current @ 30%47 A | DC Resistance3.9 mΩ | Self Resonant Frequency124 MHz | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | MountSMT | – | ||||
| WE-LHMI SMT Power Inductor, 6.8 µH, 4.45 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance6.8 µH | Performance Rated Current4.45 A | Saturation Current @ 10%5.45 A | Saturation Current @ 30%10.6 A | DC Resistance60 mΩ | Self Resonant Frequency18 MHz | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | MountSMT | – | ||||
 | WE-RJ45 LAN Transformer, 350 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-RJ45 LAN Transformer | Inductance350 µH | – | – | – | – | – | Data rate1000BASE-T | PoEPoE+ | Ports1 | Tab PositionUp | Improved Common Mode RejectionYes | Operating Temperature 0 °C up to +70 °C | LED (Left-Right)green/orange-yellow | PHY Chip Modecurrent & voltage | MountTHT | Shield TabsYes |