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Skyworks Si3406-GM | Demoboard Si3406FB3V2KIT
Si3406-GM Class 3 15W Power Over Ethernet (PoE) PD Interface Devices
Overview
| Topology | LAN / POE |
| Input voltage | 37-57 V |
| Output 1 | 3.3 V / 1.5 A |
Description
The Si3406 3.3 V Class 2 evaluation kit demonstrates a complete isolated 7 W Power over Ethernet PD system using our Si3406 PoE PD device. A single Si3406 manages the PoE interface and dc-dc conversion. 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 functionality, and inrush current protection. The isolated flyback converter outputs up to 1.45 A for a total power of 7 W while using a standard, off-the-shelf transformer. The Sifos IEEE compliance report, schematics, and layout, are all found in the User’s Guide.
Features
- IEEE 802.3at compliant
- Very small application PCB surface
- High efficiency
- High integration
- Low-profile 4 x 4 mm 20-pin QFN
- Integrated diode bridge
- Integrated thermal shutdown protection
- Low BOM Cost
- Automatic and user mode MPS generation
- Integrated transient overvoltage protection
Typical applications
- Voice over IP telephones, Wireless access points, Security and surveillance IP cameras, Point-of-sale terminals, Internet appliances, Network devices
- Lighting luminaires
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Data rate | PoE | Ports | Tab | Improved CMRR | Operating Temperature | LED | PHY Chip Mode | USB | Shield Tabs | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Version | VIN | VOut1(V) | IOut1(A) | L(µH) | n | VT(V (DC)) | Size | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-RJ45 LAN Through Hole Reflow, 100BASE-TX, PoE | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-RJ45 LAN Through Hole Reflow | Data rate100BASE-TX | PoEPoE | Ports1x1 | Tab PositionUp | Improved Common Mode RejectionNo | Operating Temperature -40 °C up to +85 °C | LED (Left-Right)green/yellow - green/yellow | PHY Chip Modecurrent | USBNo | Shield TabsNo | – | – | – | – | – | – | – | – | Length21.5 mm | – | – | – | – | – | – | – | – | – | – | – | Inductance350 µH | Turns Ratio1:1 | Insulation Test Voltage2250 V (DC) | – | MountTHR | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | Length2 mm | – | Impedance @ 100 MHz1500 Ω | Maximum Impedance1800 Ω | Maximum Impedance70 MHz | Rated Current 21000 mA | DC Resistance0.3 Ω | TypeHigh Current | VersionSMT | – | – | – | – | – | – | Size0805 | MountSMT | ||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | Capacitance560 µF | Rated Voltage10 V (DC) | Endurance 2000 | Ripple Current330 mA | Leakage Current56 µA | Dissipation Factor17 % | Pitch3.5 mm | Diameter8 mm | Length11.5 mm | PackagingAmmopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WE-PoE Power over Ethernet Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PoE Power over Ethernet Transformer | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | Length12.5 mm | – | – | – | – | – | – | – | VersionFlyback | Input Voltage 40 - 57 V (DC) | Output Voltage 13.3 V | Output Current 12.1 A | Inductance235 µH | Turns Ratio9.5:1:3.5 | Insulation Test Voltage1500 V (DC) | SizeEP10 | – |