SI3400-E1-GM

Description：IC POE CNTRL 1 CHANNEL 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube

SKU:50f96ff3c779 Category: Power Over Ethernet (PoE) Controllers Brand: Skyworks Solutions Inc.

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 1 CHANNEL 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube
Type：Controller (PD), DC/DC
Number of Channels：1
Power - Max：15 W
Internal Switch(s)：Yes
Auxiliary Sense：No
Standards：802.3af (PoE)
Voltage - Supply：2.8V ~ 57V
Current - Supply：2mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-VQFN Exposed Pad
Supplier Device Package：20-QFN (5x5)

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SI3400-E1-GM

Overview

The SI3400-E1-GM is a single-channel Power over Ethernet (PoE) controller designed for Powered Device (PD) applications, compliant with the IEEE 802.3af standard. It integrates a DC/DC converter to deliver up to 15 W of output power. The device operates within a supply voltage range of 2.8 V to 57 V and draws a typical supply current of 2 mA. It features an internal switch and is housed in a 20-VQFN package with a 5x5 mm footprint. The component supports surface-mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

Integrates a DC/DC converter for efficient power delivery in PoE applications
Complies with IEEE 802.3af standards for Powered Device classification
Includes an internal switch to simplify circuit design

Applications

IEEE 802.3af Powered Device implementations
Network infrastructure equipment requiring integrated PoE control
Industrial systems utilizing surface-mount power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and compliance specifications. Check for obsolescence status as availability may be limited. Ensure handling procedures account for moisture sensitivity level 3 requirements during storage and assembly processes.

Selection Notes

Select this component for designs requiring a compact, single-channel PoE solution adhering to 802.3af specifications. The integrated DC/DC converter reduces external component count compared to discrete solutions. Consider the 20-QFN package constraints for PCB layout. Verify that the 15 W power capability meets the load requirements of the target application.

Part Context

This part belongs to the Skyworks SI3400 series of PoE controllers. It is specifically engineered for Powered Device roles within Ethernet networks. The series provides standardized interfaces for power negotiation and delivery. The SI3400 variant focuses on single-channel operation with integrated conversion capabilities.