SI3452C-B01-GM

Overview

The SI3452C-B01-GM is a quad-channel Power over Ethernet (PoE) controller manufactured by Skyworks Solutions Inc. It functions as a Powered Device (PD) controller compliant with IEEE 802.3at (PoE+) and 802.3af (PoE) standards. The device integrates internal switches for power delivery management within a 40-VFQFN exposed pad package measuring 6x6 mm. It operates on a supply voltage range of 45V to 57V with a typical supply current of 4mA. The component supports an operating temperature range from -40°C to 85°C and features surface-mount installation.

Feature Summary

• Quad-channel architecture supporting simultaneous PoE and PoE+ classification
• Integrated internal switches for efficient power path management
• Compliance with IEEE 802.3af and 802.3at standards for interoperability

Applications

• Power over Ethernet endpoint devices requiring multi-port connectivity
• Industrial networking equipment operating in extended temperature environments
• Telecommunications infrastructure utilizing standard PoE power sourcing

Procurement Notes

Verify the obsolete status of this component before integration, as it may no longer be in active production. Confirm availability through authorized distributors or secondary markets. Ensure that any substitute components maintain electrical compatibility and pinout alignment. Review the latest Product Change Notification (PCN) documents for manufacturing updates. Validate lead times carefully due to potential supply chain constraints associated with end-of-life parts.

Selection Notes

Select this controller for designs requiring four independent PoE channels within a compact footprint. Consider the 40-QFN package for thermal performance and space-constrained layouts. Evaluate the 45V-57V input range against the specific power sourcing equipment capabilities. Assess the need for IEEE 802.3at compliance versus basic 802.3af requirements. Verify that the internal switch configuration meets the load distribution needs of the target application.

Part Context

This component belongs to the SI3452 series of PoE controllers from Skyworks Solutions. It serves as a specialized power management integrated circuit designed for network interface applications. The part is distinct from the SI3453, which functions as a Power Sourcing Equipment (PSE) controller rather than a PD controller. The series represents a solution for managing power delivery in Ethernet-based systems.

Replacement Considerations

Public confirmed substitute: TPS2384PAP (Texas Instruments). Verify functional equivalence and pin compatibility before substitution.

FAQ

Is the SI3452C-B01-GM classified as a PSE or PD controller?

It is a Powered Device (PD) controller, designed to receive power from a Power Sourcing Equipment.

What packaging does the SI3452C-B01-GM utilize?

The component utilizes a 40-VFQFN package with an exposed pad, specifically sized at 6x6 mm.