SI3453A-B02-GM

Overview

The SI3453A-B02-GM is a four-channel Power over Ethernet (PoE) controller manufactured by Skyworks Solutions Inc. It complies with IEEE 802.3af and 802.3at standards, functioning as a Powered System Equipment (PSE) controller. The device integrates internal switches and supports a supply voltage range of 45V to 57V. It operates within a temperature range of -40°C to 85°C and is housed in a 40-QFN (6x6) package.

Feature Summary

• Supports 802.3af and 802.3at PoE standards
• Integrates four independent channels
• Includes internal power switches

Applications

• Power sourcing equipment for network infrastructure
• Industrial IoT gateway power management
• Wireless access point power distribution

Procurement Notes

Verify component status before procurement as the related SI3453C variant is obsolete. Confirm availability through authorized distributors. Ensure compatibility with existing PCB layouts designed for 40-QFN packages. Validate that the specific B02 suffix meets project requirements without functional changes.

Selection Notes

Select this component for designs requiring multi-channel PoE compliance. Ensure the system can accommodate the 45V to 57V input range. Verify thermal management capabilities for the QFN package under maximum load conditions. Confirm integration with control logic interfaces compatible with the controller's specifications.

Part Context

This part belongs to the SI3453 family of PoE controllers from Skyworks Solutions. It serves as a specialized PMIC for managing power delivery over Ethernet cables. The series provides integrated solutions for network equipment manufacturers seeking compliant power sourcing implementations.

Replacement Considerations

The TPS2384PAP from Texas Instruments is listed as a similar substitute. Verify pinout compatibility and electrical parameter alignment before substitution.