SI3459-B02-IM

Overview

The SI3459-B02-IM is a Power Sourcing Equipment (PSE) controller designed for IEEE 802.3at PoE applications, supporting up to eight ports with 30W power capability per port. It operates on a 3.3V supply voltage and functions within a temperature range of -40°C to +85°C. The device features a current limit of 3 mA and utilizes an SMD/SMT surface-mount package. This component is classified as Not Recommended for New Designs (NRND).

Feature Summary

• Supports eight-port configurations for high-density PoE deployments.
• Complies with IEEE 802.3at standards for advanced PoE power delivery.
• Integrates PSE control logic for efficient power sourcing management.

Applications

• Power Sourcing Equipment (PSE) controllers in network infrastructure.
• IEEE 802.3at compliant PoE switch designs.
• High-port-count LAN power distribution systems.

Procurement Notes

Verify the Not Recommended for New Designs (NRND) status before procurement. Confirm that existing inventory meets project requirements as this component is no longer recommended for new engineering efforts. Ensure compatibility with current design specifications prior to ordering.

Selection Notes

Select this component only for maintenance or legacy system upgrades where the NRND status is acceptable. Evaluate alternative solutions if starting a new design to ensure long-term supply chain stability and support availability.

Part Context

This part belongs to Skyworks Solutions' portfolio of power switching ICs for LAN and PoE applications. It serves as a specialized controller for managing power distribution across multiple Ethernet ports in compliance with industry standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential obsolescence management strategies.