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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 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060YS75000 | SPEC | 25 files RAY files
| WL-SMCW SMT Mono-color Chip LED Waterclear | 590 | Yellow | 595 | 120 | 2 | AlInGaP | 140 | – | – | 0603 | – | – | – | – | 1.6 | 0.8 | 0.7 | – | Tape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +85 °C | – | SMT | – | – | ||
 | 74279267 | SPEC | 9 files | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | 0603 | – | – | – | – | 1.6 | 0.8 | 0.8 | 0.3 | – | 500 | – | – | – | – | – | – | – | SMT | – | – | – | – | – | 60 | 110 | 650 MHz | 2000 | 0.3 | High Speed | – | 1 | – | 500 | 0.3 | – | – | – | – | – | -55 °C up to +125 °C | – | SMT | – | – | ||
| 742792641 | SPEC | 9 files | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | 0603 | – | – | – | – | 1.6 | 0.8 | 0.8 | 0.3 | – | 1500 | – | – | – | – | – | – | – | SMT | – | – | – | – | – | 300 | 450 | 250 MHz | 2000 | 0.15 | High Current | – | 1 | – | 2000 | 0.15 | – | – | – | – | – | -55 °C up to +125 °C | – | SMT | – | – | ||
 | 744272251 | SPEC | 8 files | WE-SL5 SMT Common Mode Line Filter | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 10 | 8.7 | 6.5 | – | – | 2000 | – | – | – | – | – | – | – | SMT | – | – | – | – | – | – | 970 | – | – | 0.035 | – | sectional | 2 | 250 | 2000 | 0.035 | 80 | – | – | – | – | – | 1000 | SMT | 250 | 1500 | ||
 | 744314490 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | 7050 | – | – | – | – | 7 | 6.9 | 4.8 | – | – | – | – | 14.5 | 56 | 8.3 | 2.2 | 6.5 | Superflux | SMT | – | – | – | – | – | – | – | – | – | 0.01595 | – | – | 11.5 | – | – | – | – | – | – | – | – | -40 °C up to +150 °C | – | SMT | 4.9 | – | ||
| 74435583300 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | 2212 | – | – | – | – | 22.5 | 22 | 12 | – | – | – | – | 13.2 | 6.8 | 10.6 | 12.5 | 15 | MnZn | SMT | – | – | – | – | – | – | – | – | – | 0.01452 | – | – | 17.5 | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 33 | – | ||
 | 885012006057 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 100 pF | ±5% | 0603 | 1000 | – | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
| 885012206052 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 1 µF | ±10% | 0603 | – | 10 | 0.1 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 16 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
| 885012206071 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | 100 nF | ±10% | 0603 | – | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 25 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
 | 74404054102 | SPEC | 8 files | WE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | 5040 | – | – | – | – | 5 | 5 | 4 | – | – | 200 | 0.24 | 6000 | 1.9 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 1000 | – | ||
 | 7490220122 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | WE-LAN LAN Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 18.04 | 14.7 | 9.05 | 13.97 | – | – | – | 500 | – | – | – | – | – | SMT | – | – | – | – | 1:1 | – | – | – | – | – | 4PPoE (to 900 mA) | – | – | 350 | – | – | – | 1000BASE-T | 1 | 4PPoE (up to 1000 mA) | No | -40 °C up to +105 °C | 1500 | SMT | 350 | – | ||
 | 750343576 | SPEC | – | 10 files | WE-PoE++ Power over Ethernet Plus Plus Transformer | – | – | – | – | – | – | – | – | – | ER19/4.8/15 | – | – | – | – | 21.08 | 23.37 | 10.5 | – | Tape and Reel | – | – | – | – | – | – | – | – | Forward | 40 - 57 V (DC) | 24 | 3 | 12 | 4:4:4:4:4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | 2250 | SMT | 100 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060YS75000 | SPEC | |
| 74279267 | SPEC | |
| 742792641 | SPEC | |
| 744272251 | SPEC | |
| 744314490 | SPEC | |
| 74435583300 | SPEC | |
| 885012006057 | SPEC | |
| 885012206052 | SPEC | |
| 885012206071 | SPEC | |
| 74404054102 | SPEC | |
| 7490220122 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 750343576 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | 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 |
|---|