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Texas Instruments UCC256403 | Demoboard TIDA-010081
>95% Efficiency, 1-kW analog control AC/DC reference design for 5G telecom rectifier
Details
| Topologie | LLC Resonanzwandler |
| Eingangsspannung | 85-265 V |
| Schaltfrequenz | 35-1000 kHz |
| Ausgang 1 | 54 V / 18.7 A |
| IC-Revision | 00 |
Beschreibung
This compact, high efficiency reference design with a 54-V DC, 1000-W output targets 5G telecom power and industrial AC/DC power supplies. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit based on the UCC28180, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256403. For high efficiency needs, the UCC24624 handles synchronous rectification. This design uses an auxiliary power supply flyback with the UCC28911, which has an internal high-voltage MOSFET. This design enables 95.9% peak efficiency and allows the system to work without forced cooling. The whole system has low iTHD, with 30% load at <12%, 50% load at <8%, 100% load at <5.5%, and good load transient performance.
Eigenschaften
- Peak efficiency of 95.9% at 230-V AC and 95% across 30%~100% load
- CCM PFC and half bridge LLC based (UCC28180 and UCC256403)
- Low iTHD: 30% load at <12%, 50% load at <8%, 100% load at <5.5%
- Good load transient performance at less than 1% regulation
- Meets ±1% accuracy for input power meter across whole load range
- Passive cooling with sealed metal case
Typische Anwendungen
- 5G telecom rectifier, Merchant telecom rectifiers
- Industrial AC/DC
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | fres(MHz) | C | Sicherheitsklasse | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Raster(mm) | Verpackung | IR(A) | L(µH) | RDC max.(Ω) | VR(V (DC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | Vin | VOut1(V) | IOut1(A) | Vaux(V) | n | ISAT(A) | LS(µH) | Bauform | IC-Referenz | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD2A SMT-Speicherdrossel, 30 MHz, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD2A SMT-Speicherdrossel | Eigenresonanzfrequenz30 MHz | – | – | – | – | – | – | – | Nennstrom1.28 A | Induktivität12 µH | Gleichstromwiderstand0.21 Ω | Nennspannung80 V (DC) | – | – | Länge4 mm | Breite4.5 mm | Höhe3.2 mm | MontageartSMT | – | – | – | – | – | Sättigungsstrom1.62 A | – | Bauform4532 | – | ||||
 | WE-CMBNC Stromkompensierte Netzdrossel Nanokristallin, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | – | – | – | – | – | – | – | – | Nennstrom10 A | Induktivität2000 µH | Gleichstromwiderstand0.0063 Ω | Nennspannung300 V (DC) | Prüfspannung2100 V (AC) | MaterialNanokristallin | Länge24 mm | Breite17 mm | Höhe25 mm | MontageartTHT | – | – | – | – | – | – | – | BauformM | – | |||||
 | WCAP-FTX2 Folienkondensatoren, –, Across the mains | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTX2 Folienkondensatoren | – | Kapazität220 nF | SicherheitsklasseX2 | Spannungsanstiegsgeschwindigkeit160 V/µs | Verlustfaktor0.1 % | Isolationswiderstand30 GΩ | Raster22.5 mm | VerpackungLose | – | – | – | Nennspannung275 V (DC) | – | – | Länge26 mm | Breite6 mm | Höhe15 mm | MontageartBoxed THT | – | – | – | – | – | – | – | BauformRaster 22.5 mm | – | ||||
| WCAP-FTX2 Folienkondensatoren, –, Across the mains | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTX2 Folienkondensatoren | – | Kapazität1.5 µF | SicherheitsklasseX2 | Spannungsanstiegsgeschwindigkeit140 V/µs | Verlustfaktor0.1 % | Isolationswiderstand6.67 GΩ | Raster22.5 mm | VerpackungLose | – | – | – | Nennspannung275 V (DC) | – | – | Länge26 mm | Breite10 mm | Höhe21 mm | MontageartBoxed THT | – | – | – | – | – | – | – | BauformRaster 22.5 mm | – | ||||
 | WE-FB Sperrwandlerübertrager geeignet für LT3573/ LT3574/ LT3575/ LT3748, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | – | – | – | – | – | – | – | – | – | Induktivität100 µH | – | – | Prüfspannung1500 V (AC) | – | Länge13.34 mm | Breite15.24 mm | Höhe11.43 mm | – | Input Voltage 36 | Ausgangsspannung 124 V | Ausgangsstrom 10.5 A | Hilfsspannung8 V | Übersetzungsverhältnis2:1:0.333 | Sättigungsstrom1.9 A | Streuinduktivität3 µH | BauformEP10 | IC-ReferenzLT3574 & LT3575 | |||||
 | 750344399 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Flyback Transformer | – | – | – | – | – | – | – | – | – | Induktivität1600 µH | – | – | – | – | Länge17.5 mm | Breite20 mm | Höhe14 mm | – | Input Voltage 380 - 400 V (DC) | Ausgangsspannung 115 V | Ausgangsstrom 10.3 A | Hilfsspannung15 V | – | – | – | – | – |