The Si3406x family of PoE+ Powered Devices ICs are the industry’s most highly-integrated, IEEE 802.3at Type 2-compliant, PoE PD interface and pulse-width-modulated (PWM) switching regulator ICs.
A Si3406x IC converts the high voltage (typically >48 V) supplied over Ethernet copper UTP cabling into a regulated, low-voltage dc supply. The Si3406x products combine all the required IEEE 802.3at Type 2 detection, classification and hot swap interfaces with a complete, high efficiency, PWM switching regulator.
Silicon Labs’ Si3406x family of devices provide high voltage discrete devices onto the PD chip, PoE+ power capability, flexible power conversion topology options with up to 90% efficiency, robust sleep/wake/LED support modes, and superior EMI performance aiding customers in creating cost-effective, high power, highly efficiency, and fast time to market PoE PD-powered solutions
