SI3482-A01-GMR

$2.52

Description：IC POE CNTRL 24-48 PORT 24QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)

SKU:5ac6549f20b2 Category: Power Over Ethernet (PoE) Controllers Brand: Skyworks Solutions Inc.

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 24-48 PORT 24QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)
Type：Power Manager
Number of Channels：-
Power - Max：-
Internal Switch(s)：No
Auxiliary Sense：No
Standards：802.3at (PoE+), 802.3af (PoE)
Voltage - Supply：2.7V ~ 3.6V
Current - Supply：12.1mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：24-WFQFN Exposed Pad
Supplier Device Package：24-QFN (4x4)

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SI3482-A01-GMR

Overview

The SI3482-A01-GMR is a hot swap voltage controller and power manager designed for high-port-count Power over Ethernet (PoE) applications. It supports IEEE 802.3af and 802.3at standards, managing up to 48 ports when paired with Si3452/3 PSE port controllers. The device operates within a supply voltage range of 2.7 V to 3.6 V and draws a typical supply current of 12.1 mA. It functions across an industrial temperature range from -40°C to +85°C and is housed in a compact 24-WFQFN package with exposed pad.

Feature Summary

Integrates centralized power management capabilities for multi-port PoE infrastructure systems
Provides hot swap voltage control functionality to manage power sequencing and protection
Designed specifically for coordination with dedicated PSE port controllers

Applications

12-port Power over Ethernet systems
24-port Power over Ethernet systems
48-port Power over Ethernet systems

Procurement Notes

Verify component status as the part is marked as not recommended for new designs. Confirm availability through authorized distributors, noting that stock may be limited or restricted. Ensure compatibility with existing system architectures before procurement due to potential obsolescence constraints.

Selection Notes

Select this controller for designs requiring centralized management of multiple PoE ports. It must be used in conjunction with Si3452 or Si3453 PSE port controllers to function correctly. Evaluate thermal performance within the specified operating temperature range and ensure the PCB layout accommodates the 24-QFN package dimensions.

Part Context

This component belongs to the Skyworks SI3482 series of specialized PMICs. It serves as a central management unit within larger PoE switch architectures, handling system-level power distribution rather than individual port switching. It complements the company's portfolio of endpoint and interface solutions for networked devices.