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Texas Instruments PMP21318 | Demoboard PMP21318
Class 8 PoE 12-V, 6-A, powered device (PD) active-clamp forward converter reference design
Overview
| Topology | LAN / POE |
| Input voltage | 37-57 V |
| Output 1 | 12 V / 6 A |
| IC revision | C |
Description
This reference design features a Type-4, Class 8, 71-W active clamp forward converter for powered devices (PD) through Power over Ethernet (PoE). The TPS2373-4 PD controller provides detection and classification and also powers up the UCC2897A pulse-width modulation (PWM) controller through its advanced start-up feature. ICs used: TPS2373 - https://www.we-online.com/en/components/icref/texas-instruments/TPS2373-PMP21318-LAN-POE UCC2897A - https://www.we-online.com/en/components/icref/texas-instruments/UCC2897A-PMP21318-Forward
Features
Supports power levels for IEEE802.3bt Type-4;
Automatic maintain power signature (MPS);Advanced start-up;Synchronous rectifiers for high efficiency
Typical applications
- High-efficiency DC-to-DC power supplies
- Server power, 48-V telecom, datacom, and 42-V automotive applications
More information
All technical functions in detail
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 | – | ||
| 74435581200 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | 2212 | – | – | – | – | 22.5 | 22 | 12 | – | – | – | – | 4.3 | 13 | 20.1 | 5 | 25 | MnZn | SMT | – | – | – | – | – | – | – | – | – | 0.00473 | – | – | 10.5 | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 12 | – | ||
 | 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 | – | – | – | – | ||
| 885012206083 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 1 nF | ±10% | 0603 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
| 885012206089 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 10 nF | ±10% | 0603 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | – | – | -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 | – | ||
| 885012206114 | SPEC | 6 files | WCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | – | – | – | 10 nF | ±10% | 0603 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 100 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
 | 750341794 | SPEC | – | 5 files | WE-PoE++ Power over Ethernet Plus Plus Transformer | – | – | – | – | – | – | – | – | – | ER19/4.8/15 | – | – | – | – | 21.08 | 23.37 | 10.5 | – | – | – | – | – | – | – | – | – | – | Forward | 37 - 57 V (DC) | 12 | 6 | 12 | 4:4:2:2:4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | 2250 | SMT | 153 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060YS75000 | SPEC | |
| 74279267 | SPEC | |
| 742792641 | SPEC | |
| 744272251 | SPEC | |
| 744314490 | SPEC | |
| 74435581200 | SPEC | |
| 885012006057 | SPEC | |
| 885012206052 | SPEC | |
| 885012206071 | SPEC | |
| 885012206083 | SPEC | |
| 885012206089 | 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. | |
| 885012206114 | SPEC | |
| 750341794 | 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 |
|---|