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Details
| Topologie | Sperrwandler |
| Eingangsspannung | 10-38 V |
| Schaltfrequenz | 0.5-150 kHz |
| Ausgang 1 | 14 V / 1 A |
| Ausgang 2 | 28 V / 0.5 A |
| IC-Revision | A |
Beschreibung
The LT®3798 is a constant-voltage/constant-current isolated flyback controller that combines active power factor correction (PFC) with no opto-coupler required for output voltage feedback into a single-stage converter. A LT3798 based design can achieve a power factor of greater than 0.97 by actively modulating the input current, allowing compliance with most Harmonic Current Emission requirements.
The LT3798 is well suited for a wide variety of off-line applications. The input range can be scaled up or down, depending mainly on the choice of external components. Efficiencies higher than 86% can be achieved with output power levels up to 100W. In addition, the LT3798 can easily be designed into high DC input applications.
Eigenschaften
- Isolated PFC Flyback with Minimum Number of External Components
- VIN and VOUT Limited Only by External Components
- Active Power Factor Correction
- Low Harmonic Distortion
- No Opto-Coupler Required
- Constant-Current and Constant-Voltage Regulation
- Accurate Regulated Voltage and Current (±5% Typical)
- Energy Star Compliant (<0.5W No Load Operation)
- Thermally Enhanced 16-lead MSOP Package
Remarks:-Refer page 14Table 1. Predesigned Transformers-Typical Specification,Unless Otherwise Noted
Typische Anwendungen
- High DC VIN Isolated Applications
- Offline Bus Converter (12V, 24V or 48V Outputs)
- Offline 5W to 100W+ Applications
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | Vin | VOut1(V) | IOut1(mA) | Vaux(V) | RDC 1(Ω) | RDC 2(Ω) | RDC 3(Ω) | fswitch(kHz) | L(µH) | NPRI : NSEC : NAUX | ISAT(A) | VT(V (AC)) | L(mm) | B(mm) | H(mm) | Montageart | Bauform | MusterVerfügbarkeit & Muster | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-OLLT Offline Flyback Transformers, 85 - 265 V (AC), 28 V | Verfügbarkeit – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-OLLT Offline Flyback Transformers | Input Voltage 85 - 265 V (AC) | Ausgangsspannung 128 V | Ausgangsstrom 1500 mA | Hilfsspannung20 V | Gleichstromwiderstand 12.4 Ω | Gleichstromwiderstand 20.241 Ω | Gleichstromwiderstand 31.55 Ω | Switching Frequency 100 | Induktivität600 µH | Übersetzungsverhältnis4:1:0.71 | Sättigungsstrom1.75 A | Prüfspannung4500 V (AC) | Länge18.5 mm | Breite16.5 mm | Höhe18.8 mm | MontageartTHT | BauformEE16/7/5 | –Verfügbarkeit prüfen | |||
| SPECWE-OLLT Offline Flyback Transformers, 90 - 265 V (AC), 14 V | Verfügbarkeit – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-OLLT Offline Flyback Transformers | Input Voltage 90 - 265 V (AC) | Ausgangsspannung 114 V | Ausgangsstrom 11000 mA | Hilfsspannung18 V | Gleichstromwiderstand 11.85 Ω | Gleichstromwiderstand 20.06 Ω | Gleichstromwiderstand 31.35 Ω | Switching Frequency 100 | Induktivität600 µH | Übersetzungsverhältnis8:1:1.29 | Sättigungsstrom1.75 A | Prüfspannung4500 V (AC) | Länge18 mm | Breite16.5 mm | Höhe18 mm | MontageartTHT | BauformEE16/7/5 | –Verfügbarkeit prüfen |
Verfügbarkeitsprognose
WE Artikelnummer VerpackungseinheitenWiederbeschaffungszeit
––– Wochen
| Erwartete Verfügbarkeit | Eingehender Bestand | Menge |
|---|---|---|
| Aktuelle Verfügbarkeit | – | – |
Für diese Mengenanfrage gibt es keine Prognose.
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