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.
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Si3471 | Si3474A and Si3474B | Si34071 | |
Ethernet Ports | 1 - PSE | 4 - PSE | 1 - PD |
IEEE Standard Power | 802.3bt 90 W class 1-8 |
802.3bt 90 W class 1-8 |
802.3bt 71 W class 4-8 |
Features | External FETs No MCU Easy configuration |
External FETs 200 mΩ sense I2C interface |
External FETs Integrated dc dc Highest power PD |
Package | 5 x 7 mm QFN38 | 8 x 8 mm QFN56 | 5 x 5 mm QFN32 |
EVB | Si3471-KIT | Si3474-KIT | Si34071AC5V8KIT |
Availability | Available Now | Available Now | Available Now Data Sheet Si34071 Design Guide |
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