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Texas Instruments UCC28742 | Demoboard PMP40467
AC Input,12-V/5-A and 50-V/1-A dual-output flyback reference design
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 180-264 V |
| Schaltfrequenz | 80-130 kHz |
| Ausgang 1 | 12 V / 5 A |
| Ausgang 2 | 50 V / 1 A |
| IC-Revision | 001 |
Beschreibung
This reference design is a 12-V/5-A and 50-V/1-A isolated dual-output auxiliary power supply. Secondary-side regulation improves the line and load regulation using UCC28742. DCM valley-switching operation enable higher efficiency at light load. All components height below 20 mm enable slim TV application.
Eigenschaften
- Valley-switching enable higher efficiency at light load
- Higher integrated protection simplifies the bom cost and save space
- Components height is below 20 mm to enable slim TV application
Typische Anwendungen
- Smart Electricity Meters
- Industrial and Medical AC-to-DC Power Supplies / Bias Supply for UPS, Server PSU
- Power Supply for Cable Modem, Television, Set-Top Box, and Wireless Routers
- AC-to-DC Power Supply for Appliances
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Sicherheitsklasse | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Raster(mm) | Verpackung | IRP,40K(A) | fres(MHz) | Bauform | Version | ISAT,10%(A) | ISAT,30%(A) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Folienkondensatoren, Across the mains, 68 nF | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTX2 Folienkondensatoren | Kapazität68 nF | SicherheitsklasseX2 | Spannungsanstiegsgeschwindigkeit400 V/µs | Verlustfaktor0.1 % | Isolationswiderstand30 GΩ | Raster7.5 mm | VerpackungKarton | – | – | BauformRaster 7.5 mm | – | – | – | – | – | – | Nennspannung275 V (AC) | – | – | Länge10 mm | Breite6 mm | Höhe12 mm | MontageartBoxed THT | ||||
 | WE-CMB Stromkompensierte Netzdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CMB Stromkompensierte Netzdrossel | – | – | – | – | – | – | – | – | – | BauformXS | VersionTHT | – | – | Nennstrom1.5 A | Induktivität4 mH | Gleichstromwiderstand140 mΩ | Nennspannung250 V (AC) | Prüfspannung1500 V (AC) | MaterialMnZn | Länge15.8 mm | Breite7.8 mm | Höhe18 mm | MontageartTHT | ||||
 | WE-PD SMT-Speicherdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD SMT-Speicherdrossel | – | – | – | – | – | – | – | Performance Nennstrom3.9 A | Eigenresonanzfrequenz5.5 MHz | Bauform1210 | VersionGestanzt | Sättigungsstrom 13.6 A | Sättigungsstrom @ 30%4.4 A | Nennstrom3.2 A | Induktivität0.068 mH | Gleichstromwiderstand89 mΩ | – | – | – | Länge12 mm | Breite12 mm | Höhe10 mm | MontageartSMT | ||||
| WE-PD SMT-Speicherdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD SMT-Speicherdrossel | – | – | – | – | – | – | – | Performance Nennstrom2.6 A | Eigenresonanzfrequenz3.5 MHz | Bauform1210 | VersionGestanzt | Sättigungsstrom 12.7 A | Sättigungsstrom @ 30%3.3 A | Nennstrom2.1 A | Induktivität0.15 mH | Gleichstromwiderstand200 mΩ | – | – | – | Länge12 mm | Breite12 mm | Höhe10 mm | MontageartSMT | ||||
 | WE-LHMI SMT Speicherdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LHMI SMT Speicherdrossel | – | – | – | – | – | – | – | Performance Nennstrom4.5 A | Eigenresonanzfrequenz90 MHz | Bauform4012 | – | Sättigungsstrom 15.65 A | Sättigungsstrom @ 30%10 A | – | Induktivität0.001 mH | Gleichstromwiderstand47 mΩ | – | – | – | Länge4.45 mm | Breite4.06 mm | Höhe1 mm | MontageartSMT |