90 W 802.3bt PoE PSE and PD Solutions    

Silicon Labs makes it easy to add 90 W PoE    

Our complete PoE portfolio addresses all 802.3bt 90 W PoE needs, from switches to powered devices. The compact Si34071 PD combines the required 802.3bt PD interface with a dc-dc controller ready to provide the full 71 W of power to a system. On the other side of the cable, our Si3471 is the industry’s first single 90 W capable Ethernet port without needing any software or host MCU. Finally, the Si3474 powers up to eight 802.3at or four 802.3bt 90 W Ethernet ports and adds a feature rich register map for efficient power management. Our EVBs feature compact and cost-effective 2-layer PCB designs that can easily be implemented in many different kinds of systems and include a full Sifos IEEE compliance test report.