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Details
| Topologie | Sperrwandler |
| Eingangsspannung | 90-320 V |
| Ausgang 1 | 40 V / 0.5 A |
Beschreibung
The NCL30488 [1] is a power factor corrected controllerwith primary side constant voltage (CV) and constantcurrent (CC) control suitable for flyback, buck−boost orSEPIC converters. The NCL30488 is housed in an SOIC 8package and targets high−performance LED drivers. Thesecontroller integrate a proprietary circuit for power factorcorrection and constant current control allowing to achievea power factor above 0.9 and total harmonic distortion below10% for universal mains input. This controller is normallyprimary side regulated, but the version (TBD) is compatiblewith secondary side regulation. In this version, the COMPpin features a pullup resistor to the internal reference voltagerail and allows directly connecting an optocoupler collectorto the pin. The current−mode, quasi−resonant architecture ofthis controller optimizes the efficiency by turning on theMOSFET when the drain−source voltage is minimal(valley). The valley lockout and frequency foldbackcircuitry maintain high−efficiency performance in in lightload during constant−voltage regulation.
Eigenschaften
The circuit contains a set of powerfulprotections to ensure a robust LED driver design:
- Output over voltage protection
- Cycle−by−cycle peak current limit
- Winding and output diode short circuit protection
- Output short circuit protection
- VCC pin over voltage protection
- Floating/short pin detection: the circuit can detect most ofthese situations which is of great help to pass safety tests.
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | VR 2(V (DC)) | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Raster(mm) | Verpackung | L(mH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | IR 1(A) | L1(mH) | RDC1 max.(Ω) | VR(V (DC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE-Zulassung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTBE Folienkondensatoren, 47 nF, 504 V (DC) | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTBE Folienkondensatoren | Kapazität47 nF | Nennspannung 2504 V (DC) | Spannungsanstiegsgeschwindigkeit100 V/µs | Verlustfaktor1 % | Isolationswiderstand9 GΩ | Raster7.5 mm | VerpackungKarton | – | – | – | – | – | VersionTHT | – | – | – | Nennspannung630 V (DC) | – | – | Länge10.5 mm | Breite6 mm | Höhe12 mm | – | – | – | – | – | – | – | – | ||||
 | WE-LF Stromkompensierte Netzdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-LF Stromkompensierte Netzdrossel | – | – | – | – | – | – | – | Induktivität2.2 mH | Nennstrom2 A | – | Gleichstromwiderstand0.1 Ω | – | VersionTHT | Nennstrom [1]2 A | Induktivität [1]2.2 mH | Gleichstromwiderstand [1]0.1 Ω | Nennspannung250 V (DC) | Prüfspannung1500 V (AC) | MaterialMnZn | Länge18 mm | Breite18 mm | Höhe13 mm | MontageartTHT | – | – | – | – | – | – | VDE-Zulassung40042531 | ||||
 | WE-VD Disk Varistor, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-VD Disk Varistor | – | – | – | – | – | – | – | – | – | – | – | – | VersionTHT | – | – | – | – | – | – | Länge9 mm | Breite5.1 mm | Höhe13 mm | MontageartTHT | Wechselstrom Betriebsspannung420 V | DC Betriebsspannung560 V | (Rückwärts-) Durchbruchspannung680 V | (Reverse) Peak Pulse Current1750 A | Energieabsorption56 J | Verlustleistung0.25 W | VDE-ZulassungJa | ||||
 | WE-TI Tonneninduktivität, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TI Tonneninduktivität | – | – | – | – | – | – | – | Induktivität0.01 mH | Nennstrom1.85 A | Sättigungsstrom 12.5 A | Gleichstromwiderstand0.05 Ω | Eigenresonanzfrequenz28 MHz | VersionGestanzt | – | – | – | – | – | – | Länge6 mm | Breite6 mm | Höhe6.5 mm | MontageartTHT | – | – | – | – | – | – | – | ||||
750370980 | Offline Transformer, –, – | Simulation– | Downloads– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |