SI3406FB5V2-KIT: 7W POE, 5V @ 1.05A, 37 ~ 57V in

Summary

The Si3406 isolated Flyback evaluation board is a reference design for a power supply in a Power over Ethernet (PoE) Powered Device (PD) application.

This Si3406-Flyback EVB provides simple and low-cost solution with different output voltages and power levels.

The Si3406 IC integrates an IEEE 802.3at compatible PoE interface as well as a current control-based dc/dc converter.

The Si3406 PD integrates an internal rectifier bridge, detection circuit, classification circuit, dc/dc switch, hotswap switch, TVS overvoltage protection, dynamic soft-start circuit, cycle-by-cycle current limit, thermal shutdown, optional synchronous secondary rectification driver, automatic and user mode MPS generation, and inrush current protection.

Specifications

Manufacturer Skyworks Solutions Inc.
Category Power Management
Sub-Category POE - Power Over Ethernet
Eval Board Part Number 863-SI3406FB5V2-KIT-ND
Eval Board Supplier Skyworks Solutions Inc.
Eval Board Normally In Stock
Compliance IEEE 802.3af (802.3at Type 1)
Outputs and Type 1 Isolated
Voltage Out 5 V
Current Out 1.05 A
Voltage In 37 ~ 57 V
Efficiency @ Conditions >79%, 50V in, 5V @ 3.5 ~ 7 W
Internal Switch No
Features Current Limit (Adj. or Fixed)
Over Voltage Protection
Thermal Protection
Switching Frequency 150 kHz
Component Count + Extras 55 + 12
Application / Target Market RF: Internet of Things (IoT) Sensor Node
Design Author Skyworks Solutions, Inc.
Main I.C. Base Part Si3406
Date Created By Author 2022-12
Date Added To Library 2023-05

Eval Board

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Support Documents & Media

SI3406FBxxx-KIT - User Guide Si3406x Family - Datasheet

Media

SI3406FB5V2-KIT - Schematic SI3406FBxxx-KIT - Board SI3406FB5V2-KIT - Conducted Emissions Measurements Results; 50 V Input, 5 V Output, 6.5 W Input Powe SI3406FB5V2-KIT - End-to-End Efficiency Chart with Internal and External (S1B) Input Bridge Diodes; SI3406FB5V2-KIT - End-to-End Efficiency Chart with Internal Input Bridge Diodes and Secondary-Side S SI3406FB5V2-KIT - Isolated EVB, 5 V, Class 2 PD Feedback Loop Measurement Results at Full Load SI3406FB5V2-KIT - Isolated EVB, 5 V, Class 2 PD Feedback Loop Measurement Results at Light Load SI3406FB5V2-KIT - Radiated Emissions Measurements Results; 50 V Input, 5 V Output, 6.5 W Input Power SI3406FB5V2-KIT - Thermal Measurements of the Si3406-ISO-FB Isolated EVB, 5 V, Class 2 PD SI3406FBxxx-KIT - Chart 1 - End-to-End Efficiency of Different Configurations; 50 V Input