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Overview
| Topology | LAN / POE |
| Input voltage | 41.1-57 V |
| Output 1 | 5 V / 14 A |
| IC revision | 0.4 |
Description
The Si34071 5 V Class 8 evaluation kit demonstrates a complete 71 W IEEE 802.3bt Power over Ethernet Powered Device system using our Si34071 PoE PD device. A single Si34071 manages the PoE interface and dc-dc conversion. The isolated forward converter outputs up to 14.2 A at 5 V for a total power of 71 W while using a small EPD13 size transformer. The Sifos IEEE compliance report, schematics, and layout are all found in the User’s Guide.
Features
- Included devices:-Si34071-GM
- 71 W, isolated forward converter-5 V, 14.2 A output-Up to 91.2 % end-to-end efficiency-Small, EPD13 size transformer
- Second RJ45 jack to pass through Ethernet
Typical applications
- Powered Device system
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | C | 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 | Winding Style | Number of windings | L1(µH) | IR(mA) | RDC max.(Ω) | VR(V) | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT(V (AC)) | Mount | L(µH) | LSmin.(nH) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LQS SMT Power Inductor, 0.2 A, 0.24 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | Rated Current0.2 A | Saturation Current0.24 A | DC Resistance6000 mΩ | Self Resonant Frequency1.9 MHz | – | – | – | – | – | – | – | Length5 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | MountSMT | Inductance1000 µH | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, 1.5 A, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | Rated Current1.5 A | – | – | – | – | – | – | – | – | – | – | Length3.2 mm | – | Impedance @ 100 MHz600 Ω | Maximum Impedance650 Ω | Maximum Impedance80 MHz | Rated Current 22500 mA | DC Resistance0.07 Ω | TypeHigh Current | – | Number of windings1 | – | Rated Current2500 mA | DC Resistance [1]0.07 Ω | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | MountSMT | – | – | ||||
 | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SL5 SMT Common Mode Line Filter | Rated Current2.8 A | – | – | – | – | – | – | – | – | – | – | Length10 mm | – | Impedance @ 100 MHz800 Ω | Maximum Impedance1200 Ω | Maximum Impedance20 MHz | – | DC Resistance0.035 Ω | – | Winding Stylesectional | Number of windings2 | Inductance [1]250 µH | Rated Current2000 mA | DC Resistance [1]0.035 Ω | Rated Voltage80 V | – | – | – | – | Operating Temperature -40 °C up to +125 °C | Insulation Test Voltage1000 V (AC) | MountSMT | Inductance250 µH | Leakage Inductance [min.]1500 nH | |||||
 | WCAP-PTG5 Aluminum Polymer Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PTG5 Aluminum Polymer Capacitors | – | – | – | – | Capacitance1000 µF | Endurance 2000 | Ripple Current5900 mA | Leakage Current630 µA | Dissipation Factor10 % | Pitch5 mm | Diameter10 mm | Length12.5 mm | PackagingAmmopack | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage6.3 V | – | – | – | – | – | – | MountRadial THT | – | – | ||||
 | WE-LAN LAN Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LAN LAN Transformer | – | – | – | – | – | – | – | – | – | Pitch1.27 mm | – | Length17.55 mm | – | – | – | – | – | – | Type4PPoE (to 900 mA) | – | – | Inductance [1]350 µH | – | – | – | Data rate10/100/1000BASE-T | Ports1 | PoE4PPoE (up to 1000 mA) | Improved Common Mode RejectionNo | Operating Temperature -40 °C up to +105 °C | Insulation Test Voltage1500 V (AC) | MountSMT | Inductance350 µH | – |