Si3473A-IM

Multi-Port PSE Controllers

The Si3473A-IM IEEE 802.3bt compliant PoE PSE Controller provides up to 45 W of power for eight 2-pair Ethernet ports in a QFN56 package. The Si3473A-IM automatically detects valid Powered Devices (PDs), monitors for fault conditions, and cuts off port power when connected PDs are removed. Each port’s supply voltage and current are measured and monitored in real-time and may be accessed via the I²C interface, enabling sophisticated system-level power management and control. Fully autonomous operation is also supported. Uses industry standard 255 mΩ sense resistor.

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Specifications

Package TypeQFN56
OPNSi3473A-A01-IM
Package Size (mm)8x8
Temperature Range Min (°C)-40
Temperature Range Max (°C)85
Maximum Output Power (W)45
Sense Resistor (mΩ) 255
DescriptionOctal IEEE 802.3bt 2-pair ethernet port PSE controller with 255 mΩ current sense resistor

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si3473-kit

Si3473 Octal IEEE 802.3bt PSE 2-pair Ethernet Port Evaluation Kit

Accelerate bringing IEEE 802.3bt PoE to Ethernet switches, recording systems, and industrial devices with the Si3473 development kit.

MSRP $199.00

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