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Texas Instruments UCC2897A | Demoboard PMP21318
Class 8 PoE 12-V, 6-A, powered device (PD) active-clamp forward converter reference design
Overview
| Topology | Forward Converter |
| Input voltage | 18-110 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.
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
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 | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | fres (MHz) | VT (V (DC)) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | Material | Version | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | n | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060YS75000 | SPEC | 25 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 590 | Yellow | 595 | 120 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 °C up to +85 °C | – | – | – | 1.6 | 0.8 | 0.7 | – | Tape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | SMT | ||
 | 744314490 | 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 | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | – | 7050 | -40 °C up to +150 °C | – | – | – | 7 | 6.9 | 4.8 | – | – | 4.9 | – | – | 14.5 | 56 | – | 8.3 | 2.2 | 6.5 | Superflux | SMT | – | – | – | – | – | SMT | ||
| 74435581200 | 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 | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | – | 2212 | -40 °C up to +125 °C | – | – | – | 22.5 | 22 | 12 | – | – | 12 | – | – | 4.3 | 13 | – | 20.1 | 5 | 25 | MnZn | SMT | – | – | – | – | – | SMT | ||
 | 885012206052 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 1 µF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 10 | 0.1 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206071 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | 100 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206083 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 1 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 74404054102 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | 5040 | -40 °C up to +125 °C | – | – | – | 5 | 5 | 4 | – | – | 1000 | 0.2 | 0.24 | 6000 | 1.9 | – | – | – | – | – | – | – | – | – | – | – | SMT | ||
 | 750341794 | SPEC | – | 5 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PoE++ Power over Ethernet Plus Plus Transformer | – | – | – | – | – | – | – | – | – | – | ER19/4.8/15 | -40 °C up to +125 °C | – | – | – | 21.08 | 23.37 | 10.5 | – | – | 153 | – | – | – | – | 2250 | – | – | – | – | Forward | 37 - 57 V (DC) | 12 | 6 | 12 | 4:4:2:2:4 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060YS75000 | SPEC | |
| 744314490 | 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. | |
| 74435581200 | 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. | |
| 885012206052 | SPEC | |
| 885012206071 | SPEC | |
| 885012206083 | SPEC | |
| 74404054102 | SPEC | |
| 750341794 | SPEC | – |
| Samples |
|---|
| 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 | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | fres (MHz) | VT (V (DC)) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | Material | Version | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | n | Mount | Samples |
|---|