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Texas Instruments TPS2373 | Demoboard PMP20878
Class 8 High Power PoE Isolated Active Clamp Forward Converter (24V/3A) Reference Design
Overview
| Topology | Forward Converter |
| Input voltage | 40-57 V |
| Output 1 | 24 V / 3 A |
| IC revision | A |
Description
This reference design is a high power PoE Powered Device (PD) plus active clamp forward converter. The TPS2373 high power PD controller EVM (TPS2373-4EVM-758) provides all functions necessary to implement an IEEE802.3bt-ready PD. This is paired up with an active clamp forward converter utilizing the UCC2897A controller. The high efficiency 24V/3A output using synchronous rectifiers is ideally suited for high power PoE applications such as IP security cameras and LED lighting applications.
Features
Class 8 IEEE802.3bt-ready PoE PDAutomatic MPSAdvanced start-upSynchronous rectifiers for high efficiency (92% at 3A)1500VRMS isolationREMARK: Schematic and BOM is added
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | Size | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | IR(mA) | ISAT(A) | RDC(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | Material | Version | VIN | VOut1(V) | IOut1(A) | Vaux(V) | n | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | Luminous Intensity [typ.]120 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.7 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | MountSMT | – | – | |||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.3 mm | – | Rated Current500 mA | – | – | – | – | – | – | – | VersionSMT | – | – | – | – | – | Impedance @ 100 MHz60 Ω | Maximum Impedance110 Ω | Maximum Impedance650 MHz | Rated Current 22000 mA | DC Resistance0.3 Ω | TypeHigh Speed | – | Number of windings1 | – | Rated Current500 mA | DC Resistance [1]0.3 Ω | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | MountSMT | – | – | ||||
| WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.3 mm | – | Rated Current1500 mA | – | – | – | – | – | – | – | VersionSMT | – | – | – | – | – | Impedance @ 100 MHz300 Ω | Maximum Impedance450 Ω | Maximum Impedance250 MHz | Rated Current 22000 mA | DC Resistance0.15 Ω | TypeHigh Current | – | Number of windings1 | – | Rated Current2000 mA | DC Resistance [1]0.15 Ω | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | MountSMT | – | – | ||||
 | WE-SL5 SMT Common Mode Line Filter, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SL5 SMT Common Mode Line Filter | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length10 mm | Width8.7 mm | Height6.5 mm | – | – | Rated Current2800 mA | – | – | – | – | – | – | – | VersionSMT | – | – | – | – | – | 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 | ||||
 | WE-HCI SMT Flat Wire High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | Size7050 | – | – | – | – | Length7 mm | Width6.9 mm | Height4.8 mm | – | – | – | – | DC Resistance14.5 mΩ | Self Resonant Frequency56 MHz | Performance Rated Current8.3 A | Saturation Current @ 10%2.2 A | Saturation Current @ 30%6.5 A | MaterialSuperflux | VersionSMT | – | – | – | – | – | – | – | – | – | DC Resistance0.01595 Ω | – | – | Number of windings11.5 | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +150 °C | – | MountSMT | Inductance4.9 µH | – | ||||
| WE-HCI SMT Flat Wire High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | Size2212 | – | – | – | – | Length22.5 mm | Width22 mm | Height12 mm | – | – | – | – | DC Resistance13.2 mΩ | Self Resonant Frequency6.8 MHz | Performance Rated Current10.6 A | Saturation Current @ 10%12.5 A | Saturation Current @ 30%15 A | MaterialMnZn | VersionSMT | – | – | – | – | – | – | – | – | – | DC Resistance0.01452 Ω | – | – | Number of windings17.5 | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | MountSMT | Inductance33 µH | – | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance100 pF | Capacitance±5% | Size0603 | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance1 µF | Capacitance±10% | Size0603 | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage16 V | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Size0603 | – | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage25 V | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | – | – | – | |||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | Size5040 | – | – | – | – | Length5 mm | Width5 mm | Height4 mm | – | – | Rated Current200 mA | Saturation Current0.24 A | DC Resistance6000 mΩ | Self Resonant Frequency1.9 MHz | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | MountSMT | Inductance1000 µH | – | ||||
 | WE-LAN LAN Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LAN LAN Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length17.55 mm | Width16 mm | Height98.8 mm | Pad Dimension13.97 mm | – | – | – | – | – | – | – | – | – | VersionSMT | – | – | – | – | Turns Ratio1:1 | – | – | – | – | – | 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 | – | ||||
 | WE-PoE++ Power over Ethernet Plus Plus Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PoE++ Power over Ethernet Plus Plus Transformer | – | – | – | – | – | – | – | – | – | SizeER19/4.8/15 | – | – | – | – | Length21.08 mm | Width23.37 mm | Height10.5 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | VersionForward | Input Voltage 40 - 57 V (DC) | Output Voltage 124 V | Output Current 13 A | Auxiliary Voltage12 V | Turns Ratio4:4:4:4:4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | Insulation Test Voltage2250 V (AC) | MountSMT | Inductance100 µH | – |