SI3454A-B01-IMR

Overview

The SI3454A-B01-IMR is a four-channel Power over Ethernet (PoE) controller designed for 802.3at and 802.3af compliant systems. It supports up to 30W per port and operates within a supply voltage range of 3.3V. The device functions as a Power Sourcing Equipment (PSE) controller, managing power delivery across multiple LAN ports. It is housed in a 38-QFN package measuring 5x7 mm and is rated for operation between -40°C and +85°C.

Feature Summary

• Supports 802.3at and 802.3af PoE standards
• Four independent channel control
• Integrated PSE management logic

Applications

• Power sourcing equipment controllers
• LAN infrastructure power distribution
• Multi-port PoE switch designs

Procurement Notes

Verify the specific suffix B01 against current Skyworks documentation to confirm pinout and feature set compatibility. Check for NRND status or lifecycle changes before finalizing design-in decisions. Ensure the 38-QFN footprint matches your PCB layout requirements precisely.

Selection Notes

Select this component when designing multi-port PoE+ systems requiring 802.3at compliance. It is suitable for applications needing integrated PSE control without external discrete switches. Consider thermal performance and board space constraints associated with the 38-QFN package during selection.

Part Context

This part belongs to Skyworks' Power Switch ICs for POE/LAN category. It complements other controllers like the SI3454 and SI3459 series by offering four-channel capability. It serves as a core component for powering remote devices over Ethernet cabling in network infrastructure.

Replacement Considerations

The SI3454-B01-IMR is a related variant. Verify if the 'A' suffix denotes a specific revision or feature difference. Cross-reference datasheets for electrical parameter equivalence before substitution.