Fairchild enhanced its GreenBridge active bridge quad MOSFET technology with the FDMQ8205. It is the first member of the GreenBridge series targeting applications that receive power via Power over Ethernet (PoE), such as security cameras, wireless access points, LED lighting and other powered devices (PD). The GreenBridge technology is compliant with the IEEE 802.3at standard and has up to 10 times lower power dissipation than Schottky diodes. Its thermal performance allows designers to reduce or eliminate heat sinks to simplify their product design, decrease BOM costs and shrink PCB size.
The low conduction losses of the next-generation GreenBridge series help maximize power and voltage for the limited input power of POE systems. The GreenBridge series offers Rdson performance that has 47% lower conduction losses compared to its closest competitor, due to the power conversion efficiency of its optimized PowerTrench MOSFET technology.
The devices are suitable for new PoE-based devices that need to be smaller than previous generations. At just 4.5 x 5 mm, the GreenBridge devices incorporate four MOSFETs in an MLP package connected in a full bridge. The devices do not require an external driver. Visit fairchildsemi.com/greenbridge for more detailed product information, evaluation boards, and samples.