SI3453A-B01-GM

Description：IC POE CNTRL 4 CHANNEL 40QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube

SKU:d84d00da8364 Category: Power Over Ethernet (PoE) Controllers Brand: Skyworks Solutions Inc.

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 4 CHANNEL 40QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube
Type：Controller (PSE)
Number of Channels：4
Power - Max：40 W
Internal Switch(s)：Yes
Auxiliary Sense：No
Standards：802.3at (PoE+), 802.3af (PoE)
Voltage - Supply：45V ~ 57V
Current - Supply：4mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：40-VFQFN Exposed Pad
Supplier Device Package：40-QFN (6x6)

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SI3453A-B01-GM

Overview

The SI3453A-B01-GM is a four-channel Power over Ethernet (PoE) controller manufactured by Skyworks Solutions Inc. It complies with IEEE 802.3af and 802.3at standards, functioning as a Powered System Entity (PSE). The device operates within a supply voltage range of 45V to 57V and draws a supply current of 4mA. It supports a maximum power output of 40W per channel and features internal switches. The component is housed in a 40-VFQFN package with dimensions of 6x6 mm and includes an exposed pad for thermal management.

Feature Summary

Supports dual standard compliance for both 802.3af and 802.3at PoE protocols
Integrates four independent channels with internal switching capability
Designed for surface mount installation in compact form factors

Applications

Power sourcing equipment for network infrastructure
Industrial Ethernet switch designs
Wireless access point power distribution systems

Procurement Notes

Verify component status carefully as the SI3453A-B01-GM is classified as obsolete or end-of-life. Confirm availability through authorized distributors or secondary markets. Ensure that any sourced units match the original manufacturing specifications and packaging requirements to maintain system reliability and compatibility.

Selection Notes

Select this controller for applications requiring multi-channel PoE power delivery compliant with legacy and enhanced standards. Consider the 40-QFN package constraints for PCB layout. Evaluate thermal performance given the 40W maximum power rating per channel and the specific operating temperature range limits defined in the datasheet.

Part Context

This part belongs to the SI3453 family of PoE controllers from Skyworks Solutions. It serves as a specialized integrated circuit for managing power distribution over Ethernet cables. The component integrates control logic and power stages to simplify the design of powered network devices compared to discrete solutions.