SI3474A-A02-IM

$4.50

Description：IEEE 802.3BT FOUR ETHERNET PORT
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tray

SKU:7141a86097f2 Category: Power Over Ethernet (PoE) Controllers Brand: Skyworks Solutions Inc.

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Product introduction

Product Detailed Parameters

Description：IEEE 802.3BT FOUR ETHERNET PORT
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tray
Type：Controller (PSE)
Number of Channels：4
Power - Max：-
Internal Switch(s)：Both
Auxiliary Sense：No
Standards：802.3at (PoE+), 802.3af (PoE), 802.3bt
Voltage - Supply：50V ~ 57V
Current - Supply：17mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：56-VFQFN Exposed Pad
Supplier Device Package：56-QFN (8x8)

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SI3474A-A02-IM

Overview

The SI3474A-A02-IMR is a Power Sourcing Equipment (PSE) controller designed for IEEE 802.3bt Type 4 applications, supporting up to 90W per port. It integrates four independent PoE ports within a single QFN-56 package. The device includes an integrated current sense resistor and supports Class 8 power classification. It operates within a temperature range of -40°C to +85°C and complies with the latest high-power PoE standards.

Feature Summary

Integrates four independent PoE channels for compact multi-port designs
Supports IEEE 802.3bt Type 4 standard for 90W power delivery
Includes integrated current sensing components to reduce external bill of materials
Provides comprehensive protection mechanisms for reliable PSE operation

Applications

High-power PoE switches and hubs
Wireless access points requiring Type 4 power
Outdoor PoE midspan injectors
Network infrastructure equipment

Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm package type and reel specifications. Ensure compatibility with your PCB footprint and thermal management requirements. Confirm moisture sensitivity level handling procedures during assembly. Cross-reference the exact part number with the manufacturer's current datasheet to validate availability and revision status before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring four independent 90W PoE ports in a minimal footprint. It is suitable for applications needing full compliance with IEEE 802.3bt Type 4 standards. Consider the integrated current sense resistor for simplified design. Evaluate thermal performance requirements given the high power density of the QFN-56 package.

Part Context

This part belongs to the SI3474 family of PoE controllers from Skyworks Solutions. It complements other variants like the SI3474A-A01-IMR by offering specific integration levels for Type 4 PSE applications. The family targets modern network infrastructure demanding higher power budgets per port.