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Texas Instruments TPS2373-4RGWR | Demoboard PMP21103
Class 5 PoE PD (12 V/2.5 A) supply reference design with smooth transition to auxiliary
Details
| Topologie | Sonstige Topologie |
| Eingangsspannung | 42.5-57 V |
| Ausgang 1 | 12 V / 2.5 A |
| IC-Revision | B |
Beschreibung
This reference design implements an IEEE802.3bt compliant Class 5 Power over Ethernet (PoE) Powered Device (PD) with smooth transition between the PoE input and an auxiliary supply connected to the output. The design consists of a 12-V/2.5-A active clamp forward converter utilizing the UCC2897A controller and allows one PoE Power Source Equipment (PSE) supply and one AC/DC wall adapter auxiliary supply to be used in order to decrease the probability of power and data loss in your system. An IEEE802.3bt compliant TPS2373-4 high power PD controller is utilized to control all PoE functions.
Eigenschaften
- Smooth transition when switching between PoE input and 12-V adapter on output
- 89% efficiency with 12-V/2.5-A output and PoE input (FET OR-ing)
- Diode OR-ing option for lower cost
Typische Anwendungen
- Outdoor backhaul unit, Small cell base station, WLAN/Wi-Fi access point
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Tol. C | Bauform | DF(%) | RISO | Keramiktyp | L(mm) | B(mm) | H(mm) | Fl(mm) | Verpackung | Wicklungstyp | Wicklungsanzahl | L1(µH) | Zmax(Ω) | IR 1(mA) | RDC1 max.(Ω) | VR(V (DC)) | Z(Ω) | Datenrate | Ports | PoE | Improved CMRR | Betriebstemperatur | VT(V (AC)) | Montageart | L(µH) | LSmin.(nH) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 10 µF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 25 V(DC) | Kapazität10 µF | Kapazität±10% | Bauform1210 | Verlustfaktor5 % | Isolationswiderstand0.01 GΩ | KeramiktypX7R Klasse II | Länge3.2 mm | Breite2.5 mm | Höhe2 mm | Pad Dimension0.3 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | Nennspannung25 V (DC) | – | – | – | – | – | Betriebstemperatur -55 °C up to +125 °C | – | – | – | – | |||||
 | WE-SL5 Stromkompensierter SMT Line Filter, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-SL5 Stromkompensierter SMT Line Filter | – | – | – | – | – | – | Länge10 mm | Breite8.7 mm | Höhe6.5 mm | – | – | WicklungstypSektional | Wicklungsanzahl2 | Induktivität [1]250 µH | Maximale Impedanz1200 Ω | Nennstrom [1]2000 mA | Gleichstromwiderstand [1]0.035 Ω | Nennspannung80 V (DC) | – | – | – | – | – | Betriebstemperatur -40 °C up to +125 °C | Prüfspannung1000 V (AC) | MontageartSMT | Induktivität250 µH | Streuinduktivität [min.]1500 nH | ||||
 | WE-SL5 HC Stromkompensierter SMT Line Filter, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-SL5 HC Stromkompensierter SMT Line Filter | – | – | – | – | – | – | Länge9.5 mm | Breite8.3 mm | Höhe5 mm | – | – | WicklungstypSektional | Wicklungsanzahl2 | Induktivität [1]9 µH | – | Nennstrom [1]3500 mA | Gleichstromwiderstand [1]0.011 Ω | Nennspannung80 V (DC) | Impedanz800 Ω | – | – | – | – | Betriebstemperatur -40 °C up to +125 °C | Prüfspannung500 V (AC) | MontageartSMT | Induktivität9 µH | Streuinduktivität [min.]970 nH | ||||
 | WE-LAN LAN Übertrager, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LAN LAN Übertrager | – | – | – | – | – | – | Länge17.55 mm | Breite16 mm | Höhe98.8 mm | Pad Dimension13.97 mm | – | – | – | Induktivität [1]350 µH | – | – | – | – | – | Datenrate10/100/1000BASE-T | Ports1 | PoE4PPoE (bis zu 1000 mA) | Verbesserte Common Mode EntstörungNein | Betriebstemperatur -40 °C up to +105 °C | Prüfspannung1500 V (AC) | MontageartSMT | Induktivität350 µH | – |