Overview
The FDMQ8205A, produced by onsemi, is a high-efficiency bridge rectifier part of the GreenBridgeTM 2 series. This component is designed to replace conventional diode bridges, offering significant improvements in power efficiency and thermal management. It is particularly suited for Power over Ethernet (PoE) Power Device (PD) applications, where it must operate within the limited power delivered by Power Source Equipment (PSE) as classified by IEEE802.3at. The FDMQ8205A features low rDS(on) dual P-ch MOSFETs and N-ch MOSFETs, which reduce power loss and eliminate thermal design problems associated with traditional diode bridges.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | MLP 4.5x5 |
| Number of Pins | 12 |
| Maximum Drain Current | 3.1 A |
| Maximum Operating Temperature | -40°C to +105°C |
| rDS(on) | Low rDS(on) 100V Rated MOSFETs |
| RoHS Compliance | Yes, RoHS Version 2011/65/EU, 2015/863 |
| IEEE802.3at Compatibility | Yes, meets detection and classification requirements |
| Factory Pack Quantity | 3000 units |
Key Features
- Low power loss GreenBridgeTM that replaces diode bridges
- Self-driving circuitry for MOSFETs
- Low rDS(on) 100V rated MOSFETs
- Maximizes available power and voltage
- Eliminates thermal design problems
- IEEE802.3at compatible, meeting detection and classification requirements
- Works with 2 and 4-pair architecture
- Small backfeed voltage
- Compact MLP 4.5x5 package
Applications
- Power over Ethernet (PoE) Power Device (PD) applications
- IP Phones
- Network Cameras
- Wireless Access Points
- Thin Clients
- Microcell and Femtocell
- Industrial automation for precision control
- Medical equipment such as patient monitors and diagnostic systems
- Aerospace and defense systems for navigation and communication
Q & A
- What is the FDMQ8205A used for?
The FDMQ8205A is used as a high-efficiency bridge rectifier, particularly in Power over Ethernet (PoE) Power Device (PD) applications and other industrial, medical, and aerospace applications.
- What are the key benefits of using the FDMQ8205A over traditional diode bridges?
The FDMQ8205A reduces power loss, eliminates thermal design problems, and maximizes available power and voltage compared to traditional diode bridges.
- Is the FDMQ8205A compatible with IEEE802.3at PoE standard?
Yes, the FDMQ8205A is compatible with the IEEE802.3at PoE standard and meets detection and classification requirements.
- What is the maximum operating temperature of the FDMQ8205A?
The maximum operating temperature of the FDMQ8205A is -40°C to +105°C.
- What is the package type of the FDMQ8205A?
The package type of the FDMQ8205A is MLP 4.5x5.
- Is the FDMQ8205A RoHS compliant?
Yes, the FDMQ8205A is RoHS compliant, adhering to RoHS Version 2011/65/EU, 2015/863.
- What are some common applications of the FDMQ8205A?
Common applications include IP Phones, Network Cameras, Wireless Access Points, Thin Clients, Microcell, Femtocell, and various industrial and medical devices.
- What is the maximum drain current of the FDMQ8205A?
The maximum drain current of the FDMQ8205A is 3.1 A.
- Does the FDMQ8205A have built-in protection features?
Yes, the FDMQ8205A includes protection features such as overcurrent, overvoltage, and thermal protection.
- How does the FDMQ8205A improve efficiency compared to traditional diode bridges?
The FDMQ8205A improves efficiency by using low rDS(on) MOSFETs, which reduce the power loss caused by voltage drop, unlike traditional diode bridges.
