Powerelectronics 4219 076053 Fairchild Semiconductor

Active Bridge Solution for Power Over Ethernet-Based IoT Devices

Nov. 16, 2016

Fairchild enhanced its GreenBridge active bridge quad MOSFET technology with FDMQ8205, the first member of its next-generation GreenBridge series for applications that receive power via Power Over Ethernet (POE), such as security cameras, wireless access points, LED lighting and other Powered Devices (PD).  Designers can lower operating temperature, increase efficiency and reduce the solution size of their devices by taking advantage of the GreenBridge solution’s best-in-class RDS(ON) performance, extremely small form factor and superior thermal performance.

Advanced GreenBridge technology is compliant with the IEEE 802.3at standard and has up to 10 times lower power dissipation than Schottky diodes. This superior thermal performance allows designers to reduce or eliminate heat sinks to simplify their product design, decrease BOM costs and shrink PCB size.

The extremely low conduction losses of the next-generation GreenBridge series are another important advantage as power and voltage must be maximized for the limited input power of POE systems. The GreenBridge series has best-in-class Rdson performance with 47 percent lower conduction losses compared to its closest competitor due to the power conversion efficiency of its optimized PowerTrench MOSFET technology. 

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