SI3459-B02-IMR

Overview

The SI3459-B02-IMR is a Power Sourcing Equipment (PSE) controller manufactured by Skyworks Solutions, designed for IEEE 802.3at PoE applications. It supports eight ports with up to 30W power per port. The device operates on a 3.3V supply voltage and functions within a temperature range of -40°C to +85°C. It utilizes an SMD/SMT installation style. The component is classified as NRND (Not Recommended for New Designs).

Feature Summary

• Supports eight-port PoE PSE architecture compliant with the 802.3at standard.
• Provides up to 30W power capability per individual port.

Applications

• IEEE 802.3at PoE LAN infrastructure systems

Procurement Notes

Verify current availability status as this component is designated as Not Recommended for New Designs (NRND). Confirm that existing inventory or last-time buy options meet project requirements before proceeding with procurement. Ensure compatibility with legacy designs rather than initiating new development cycles using this specific part number.

Selection Notes

Select this component only for maintenance or upgrade of existing 802.3at PoE systems where the NRND status does not impact long-term support needs. Evaluate alternative Skyworks solutions if designing new hardware to ensure future supply chain stability and compliance with updated design guidelines.

Part Context

This IC belongs to the Skyworks family of power management integrated circuits specifically tailored for networking equipment. It serves as a central controller for managing power distribution over Ethernet cables in multi-port switches and injectors, ensuring standardized power delivery to connected devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.