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Skyworks Si3406-GM | Demoboard Si3406FB12V2KIT
Si3406-GM Class 3 15W Power Over Ethernet (PoE) PD Interface Devices
Overview
| Topology | LAN / POE |
| Input voltage | 37-57 V |
| Output 1 | 12 V / 0.45 A |
| IC revision | 1 |
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) | Operating Temperature | 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 (mA) | L (µH) | n | VT (V (DC)) | Size | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74982104400 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-RJ45 LAN Through Hole Reflow | 100BASE-TX | PoE | 1x1 | Up | No | -40 °C up to +85 °C | green/yellow - green/yellow | current | No | No | – | – | – | – | – | – | – | – | – | 21.5 | – | – | – | – | – | – | – | – | – | – | – | 350 | 1:1 | 2250 | – | THR | ||
 | 742792097 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | – | 2 | – | 1500 | 1800 | 70 MHz | 1000 | 0.3 | High Current | SMT | – | – | – | – | – | – | 0805 | SMT | ||
 | 860020274012 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | – | – | – | 560 µF | 10 | 2000 | -40 °C up to +105 °C | 330 | 56 | 17 | 3.5 | 8 | 11.5 | Ammopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 750319936 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PoE Power over Ethernet Transformer | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | 12.5 | – | – | – | – | – | – | – | Flyback | 40 - 57 V (DC) | 12 | 600 | 235 | 2.75:1:1 | 1500 | EP10 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74982104400 | SPEC | |
| 742792097 | SPEC | |
| 860020274012 | SPEC | |
| 750319936 | SPEC | – |
| Samples |
|---|
| 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) | Operating Temperature | 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 (mA) | L (µH) | n | VT (V (DC)) | Size | Mount | Samples |
|---|