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Onsemi NCP1342 | Demoboard NCP1342PD45WGEVB
NCP1342: Quasi-Resonant Flyback Controller with Valley Lock-Out Switching
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 90-264 V |
| IC-Revision | A |
Beschreibung
The NCP1342 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 NCP1342 can enable no-load power consumption below 30 mW.The NCP1342 features proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1342 enters quiet-skip mode to manage the power delivery while minimizing acoustic noise.To ensure light load performance with high frequency designs, the NCP1342 incorporates Minimum Peak Current Modulation (MPCM) to reduce the switching frequency quickly. To help ensure converter ruggedness, the NCP1342 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 overvoltage and NTC-ready overtemperature protection through a dedicated pin, and line removal detection to safely discharge the X2 capacitors when the ac line is removed.
Eigenschaften
- Minimum Peak Current Modulation for Rapid Frequency Foldback (RFF)
- QR Frequency Jittering
- Quiet-Skip Technology
- Integrated HV Startup with Brownout Protection
- Valley Switching Operaton 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 implementation
Typische Anwendungen
- Medium or High Power AC-DC Adapters, Ultra High Density AC-DC Adapters, USB PD Compliant
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Sicherheitsklasse | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Betriebstemperatur | Raster (mm) | Verpackung | Tol. C | Bauform | Betriebstemperatur | Q | DF (%) | Keramiktyp | Fl (mm) | ISAT (A) | fres (MHz) | Version | Interface typ | Gender | Pins (Value) (pcs) | IR 1 (mA) | Arbeitsspannung (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | IR (mA) | L (mH) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Montageart | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Anwendung | VDE-Zulassung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006051 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 50 V(DC) | 10 pF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±5% | 0603 | -55 °C up to +125 °C | 600 | – | NP0 Klasse I | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | – | – | – | – | – | – | – | – | ||
| 885012006056 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 50 V(DC) | 68 pF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±5% | 0603 | -55 °C up to +125 °C | 1000 | – | NP0 Klasse I | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | – | – | – | – | – | – | – | – | ||
| 885012206083 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±10% | 0603 | -55 °C up to +125 °C | – | 2.5 | X7R Klasse II | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | – | – | – | – | – | – | – | – | ||
| 885012207116 | SPEC | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 100 V(DC) | 1 nF | – | – | – | 10 GΩ | -55 °C bis zu +125 °C | – | 7" Tape & Reel | ±10% | 0805 | -55 °C up to +125 °C | – | 2.5 | X7R Klasse II | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 100 | – | – | 2 | 1.25 | 0.8 | – | – | – | – | – | – | – | – | – | ||
| 885012206094 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 50 V(DC) | 68 nF | – | – | – | 7.4 GΩ | – | – | 7" Tape & Reel | ±10% | 0603 | -55 °C up to +125 °C | – | 3 | X7R Klasse II | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | – | – | – | – | – | – | – | – | ||
 | 890324023028 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-FTX2 Folienkondensatoren | 220 nF | X2 | 300 | 0.1 | 30 GΩ | -40 °C bis zu +105 °C | 10 | Lose | ±10% | Pitch 10 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 275 | – | – | 13 | 8 | 14 | Boxed THT | – | – | – | – | – | – | Across the mains | – | ||
| 885012206076 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | – | – | – | 0.5 GΩ | – | – | 7" Tape & Reel | ±10% | 0603 | -55 °C up to +125 °C | – | 10 | X7R Klasse II | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 25 | – | – | 1.6 | 0.8 | 0.8 | – | – | – | – | – | – | – | – | – | ||
 | 742792040 | SPEC | 9 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-CBF SMT-Ferrit | – | – | – | – | – | -55 °C bis zu +125 °C | – | – | – | 0805 | -55 °C up to +125 °C | – | – | – | 0.5 | – | – | SMT | – | – | – | 2000 | – | 600 | 700 | 150 MHz | 2000 | 0.15 | High Current | 1500 | – | – | – | – | 2 | 1.2 | 0.0009 | SMT | – | – | – | – | – | – | – | – | ||
| 742792096 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-CBF SMT-Ferrit | – | – | – | – | – | -55 °C bis zu +125 °C | – | – | – | 0805 | -55 °C up to +125 °C | – | – | – | 0.5 | – | – | SMT | – | – | – | 1000 | – | 1000 | 1000 | 100 MHz | 1000 | 0.3 | High Current | 800 | – | – | – | – | 2 | 1.2 | 0.9 | SMT | – | – | – | – | – | – | – | – | ||
 | 744821110 | SPEC | 10 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-CMB Stromkompensierte Netzdrossel | – | – | – | – | – | -40 °C bis zu +125 °C | – | – | – | XS | -40 °C up to +125 °C | – | – | – | – | – | – | THT | – | – | 4 | 700 | – | – | – | – | – | 0.35 | – | 700 | 10 | 250 | 1500 | MnZn | 15 | 7.5 | 18 | THT | – | – | – | – | – | – | – | 40042670 | ||
 | 820573011 | SPEC | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-VD Disk Varistor | – | – | – | – | – | -40 °C bis zu +85 °C | – | – | – | 7 mm | -40 °C up to +85 °C | – | – | – | – | – | – | THT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 9 | 4.1 | 12.5 | THT | 300 | 385 | 470 | 1200 | 35 | 0.25 | 230 VAC | Ja | ||
 | 7447462470 | SPEC | 7 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-TI Tonneninduktivität | – | – | – | – | – | – | – | – | – | 5075 | -40 °C up to +125 °C | – | – | – | – | 1.2 | 10.6 | Schrumpfschlauch | – | – | – | – | – | – | – | – | – | 0.34 | – | 1180 | 0.047 | – | – | – | 6 | 6 | 8.5 | THT | – | – | – | – | – | – | – | – | ||
 | 632723300011 | SPEC | – | 6 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT | – | – | – | – | 1000 MΩ | – | – | Tape and Reel | – | – | -40 °C up to +105 °C | – | – | – | – | – | – | – | Type C | Receptacle | 24 | – | 20 | – | – | – | – | – | Horizontal | 5000 | – | – | – | – | – | – | – | THR | – | – | – | – | – | – | USB 3.1 | – | |
 | 750343635 | SPEC | 5 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Transformer | – | – | – | – | – | – | – | Tray | – | RM8 | -40 °C up to +125 °C | – | – | – | – | 2.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.36 | – | 3000 | – | 21.59 | 21.59 | 17.27 | THT | – | – | – | – | – | – | – | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Sicherheitsklasse | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Betriebstemperatur | Raster (mm) | Verpackung | Tol. C | Bauform | Betriebstemperatur | Q | DF (%) | Keramiktyp | Fl (mm) | ISAT (A) | fres (MHz) | Version | Interface typ | Gender | Pins (Value) (pcs) | IR 1 (mA) | Arbeitsspannung (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | IR (mA) | L (mH) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Montageart | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Anwendung | VDE-Zulassung | Muster |
|---|