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Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 5 V |
| Ausgang 1 | 8 V / 3 A |
| IC-Revision | 1 |
Beschreibung
The NCP1340 is a highly integrated quasi−resonant flyback controller suitable for designing high−performance off−line power converters. With an integrated active X2 capacitor discharge feature, the NCP1340 can enable no−load power consumption below 30 mW. The quasi−resonant current−mode flyback stage features a proprietary valley−lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to a frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1340 enters quiet−skip mode to manage the power delivery. To help ensure converter ruggedness, the NCP1340 implements several key protective features such as internal brownout detection, a non−dissipative Over Power Protection (OPP) for constant maximum output power regardless of input voltage, a latched over voltage and NTC−ready over temperature protection through a dedicated pin, and line removal detection to safely discharge the X2 capacitors when the line is removed.
Eigenschaften
- QR Frequency Jittering
- New Quiet-Skip Technology
- Integrated HV Startup with Brownout Protection
- Valley Switching Operation with Valley Lockout
- Integrated X2 Capacitor Discharge Capability
- NTC Compatible Fault Pin
- High Drive Capability: -500 mA / +800 mA
- Latch input for OVP and OTP implementations
Typische Anwendungen
- Medium or High Power AC-DC Adapters / Ultra High Density AC-DC Adapters
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | VR(V (AC)) | Sicherheitsklasse | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Raster(mm) | L(mm) | B(mm) | H(mm) | Verpackung | L(µH) | IR(A) | ISAT,10%(A) | fres(MHz) | Version | Interface typ | Gender | Pins | Montageart | Leiterplattendicke(mm) | Arbeitsspannung(V (DC)) | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(Ω) | Typ | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE-Zulassung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-VD Disk Varistor, 230 VAC, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-VD Disk Varistor | – | – | – | – | – | – | – | Länge9 mm | Breite4.1 mm | Höhe12.5 mm | – | – | – | – | – | VersionTHT | – | – | – | MontageartTHT | – | – | – | – | – | – | – | – | Wechselstrom Betriebsspannung300 V | DC Betriebsspannung385 V | (Rückwärts-) Durchbruchspannung470 V | (Reverse) Peak Pulse Current1200 A | Energieabsorption35 J | Verlustleistung0.25 W | VDE-ZulassungJa | ||||
 | WCAP-FTXX Folienkondensatoren, Across the mains, 68 nF | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTXX Folienkondensatoren | Kapazität68 nF | Nennspannung310 V (AC) | SicherheitsklasseX2 | Spannungsanstiegsgeschwindigkeit400 V/µs | Verlustfaktor0.1 % | Isolationswiderstand30 GΩ | Raster7.5 mm | Länge10 mm | Breite6 mm | Höhe12 mm | VerpackungLose | – | – | – | – | – | – | – | – | MontageartBoxed THT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WR-USB Type C Connectors, USB 3.1, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-USB Type C Connectors | – | – | – | – | – | Isolationswiderstand1000 MΩ | – | – | – | – | VerpackungTape and Reel | – | Nennstrom5 A | – | – | – | Interface typType C | GenderBuchse | Pins24 | MontageartTHR | Leiterplattendicke1.6 mm | Arbeitsspannung48 V (DC) | – | – | – | – | – | TypHorizontal | – | – | – | – | – | – | – | |||
 | WE-CBF SMT-Ferrit, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | – | – | – | – | – | – | Länge2 mm | Breite1.2 mm | Höhe0.0009 mm | – | – | Nennstrom1.5 A | – | – | VersionSMT | – | – | – | MontageartSMT | – | – | Impedanz @ 100 MHz600 Ω | Maximale Impedanz700 Ω | Maximale Impedanz150 MHz | Nennstrom 22000 mA | Gleichstromwiderstand0.15 Ω | TypHochstrom | – | – | – | – | – | – | – | ||||
| WE-CBF SMT-Ferrit, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | – | – | – | – | – | – | Länge2 mm | Breite1.2 mm | Höhe0.9 mm | – | – | Nennstrom0.8 A | – | – | VersionSMT | – | – | – | MontageartSMT | – | – | Impedanz @ 100 MHz1000 Ω | Maximale Impedanz1000 Ω | Maximale Impedanz100 MHz | Nennstrom 21000 mA | Gleichstromwiderstand0.3 Ω | TypHochstrom | – | – | – | – | – | – | – | ||||
 | WE-TI Tonneninduktivität, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TI Tonneninduktivität | – | – | – | – | – | – | – | Länge6 mm | Breite6 mm | Höhe8.5 mm | – | Induktivität100 µH | Nennstrom0.8 A | Sättigungsstrom 10.8 A | Eigenresonanzfrequenz7.1 MHz | VersionSchrumpfschlauch | – | – | – | MontageartTHT | – | – | – | – | – | – | Gleichstromwiderstand0.65 Ω | – | – | – | – | – | – | – | – |