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Texas Instruments TPS23731 | Demoboard PMP22806
Class 4 PoE PD isolated-flyback converter (12 V, 2.1 A) primary side regulation reference design
Details
| Topologie | LAN / POE |
| Eingangsspannung | 52.5-57 V |
| Ausgang 1 | 12 V / 2.1 A |
Beschreibung
This reference design implements a Power over Ethernet (PoE) Power Device (PD) flyback converter with 12-V and 2.1-A output. TPS23731 PD and PWM controller provides all necessary functions to implement the PoE PD control and PWM control for the flyback converter. TPS23731 uses primary side regulation (PSR) that eliminates the need for optocoupler feedback.
Eigenschaften
- Combined PD and PWM controller
- Primary side regulation (no optocoupler)
- Optional 48-V adapter input
- Frequency dithering for improved EMI
Typische Anwendungen
- Redundant Power Feeds or Power Sharing
- Barcode reader, WLAN, Wi-Fi® access point, IP network camera
- IP network camera
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | H (mm) | Fl (mm) | Verpackung | L (µH) | IR (mA) | ISAT (A) | fres (MHz) | Montageart | LR (nH) | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | Material | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | Wicklungstyp | Wicklungsanzahl | L1 (µH) | IR 1 (mA) | RDC1 max. (Ω) | VR (V (DC)) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206083 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | ±10% | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | ||
| 885012206087 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 4.7 nF | ±10% | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | ||
| 885012206071 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±10% | 0603 | -55 °C up to +125 °C | 3.5 | 5 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 25 | ||
| 885012206076 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±10% | 0603 | -55 °C up to +125 °C | 10 | 0.5 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 25 | ||
| 885012209028 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 10 µF | ±10% | 1210 | -55 °C up to +125 °C | 5 | 0.01 GΩ | X7R Klasse II | 3.2 | 2.5 | 2 | 0.3 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 25 | ||
 | 742792641 | SPEC | 9 Dateien | WE-CBF SMT-Ferrit | – | – | 0603 | -55 °C up to +125 °C | – | – | – | 1.6 | 0.8 | 0.8 | 0.3 | – | – | 1500 | – | – | SMT | – | – | – | – | – | 300 | 450 | 250 MHz | 2000 | 0.15 | High Current | – | 1 | – | 2000 | 0.15 | – | ||
 | 744272251 | SPEC | 8 Dateien | WE-SL5 Stromkompensierter SMT Line Filter | – | – | – | – | – | – | – | 10 | 8.7 | 6.5 | – | – | 250 | 2000 | – | – | SMT | – | – | – | – | – | – | 970 | – | – | 0.035 | – | sectional | 2 | 250 | 2000 | 0.035 | 80 | ||
 | 744042003 | SPEC | 8 Dateien | WE-TPC SMT-Speicherdrossel | – | – | 4818 | -40 °C up to +125 °C | – | – | – | 4.8 | 4.8 | 1.8 | – | – | 3.3 | 1950 | 1.8 | 80 | SMT | – | – | – | – | – | – | – | – | – | 0.065 | – | – | 9.5 | – | – | – | – | ||
 | 744302015 | SPEC | 8 Dateien | WE-HCM SMT-Hochstrominduktivität | – | – | 7050 | -40 °C up to +125 °C | – | – | – | 7.15 | 7 | 5 | 2.5 | – | 0.15 | 30000 | – | 55 | SMT | 125 | 30 | 35 | 0.235 | MnZn | – | – | – | – | 0.000251 | – | – | 1 | – | – | – | – | ||
 | 749022016 | SPEC | – | 10/100/1000 Base-T SMT Transformer | – | – | – | 0 °C up to +70 °C | – | – | – | 18.16 | 16 | 10.16 | 13.97 | – | 350 | – | – | – | SMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 885012206083 | SPEC | |
| 885012206087 | SPEC | |
| 885012206071 | SPEC | |
| 885012206076 | SPEC | |
| 885012209028 | SPEC | |
| 742792641 | SPEC | |
| 744272251 | SPEC | |
| 744042003 | SPEC | |
| 744302015 | SPEC | |
| 749022016 | SPEC |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | H (mm) | Fl (mm) | Verpackung | L (µH) | IR (mA) | ISAT (A) | fres (MHz) | Montageart | LR (nH) | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | Material | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | Wicklungstyp | Wicklungsanzahl | L1 (µH) | IR 1 (mA) | RDC1 max. (Ω) | VR (V (DC)) | Muster |
|---|