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Onsemi NCP1342 | Demoboard NCP1342PD90WGEVB
NCP1342: Quasi-Resonant Flyback Controller with Valley Lock-Out Switching
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 90-264 V |
| Ausgang 1 | 20 V / 4.5 A |
| 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 | Produktserie | C | VR (V (DC)) | Sicherheitsklasse | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Betriebstemperatur | Raster (mm) | L (mm) | W (mm) | H (mm) | Verpackung | Tol. C | Bauform | DF (%) | Keramiktyp | Fl (mm) | Betriebstemperatur | Q | 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) | Anwendung | VDE-Zulassung | L (µH) | IR (mA) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006051 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 10 pF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±5% | 0603 | – | NP0 Klasse I | 0.4 | -55 °C up to +125 °C | 600 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012006056 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 68 pF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±5% | 0603 | – | NP0 Klasse I | 0.4 | -55 °C up to +125 °C | 1000 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206077 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 100 pF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 2.5 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206080 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 330 pF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 2.5 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206083 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 2.5 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206085 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 2.2 nF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 2.5 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 885342207016 | SPEC | 7 Dateien | WCAP-CSMH Mid and High Voltage | 2.2 nF | 1000 | – | – | – | 10 GΩ | -55 °C bis zu +125 °C | – | 2 | 1.25 | 1.25 | 7" Tape & Reel | ±10% | 0805 | 2.5 | X7R Klasse II | 0.5 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206089 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 10 nF | 50 | – | – | – | 10 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 2.5 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206094 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 68 nF | 50 | – | – | – | 7.4 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 3 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206095 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | 50 | – | – | – | 5 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 3 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 890324024002 | SPEC | 8 Dateien | WCAP-FTX2 Folienkondensatoren | 220 nF | 275 | X2 | 240 | 0.1 | 30 GΩ | -40 °C bis zu +105 °C | 12.5 | 15 | 7 | 12.5 | Lose | ±10% | Pitch 12.5 mm | – | – | – | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | Across the mains | – | – | – | ||
| 885012106019 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 220 nF | 25 | – | – | – | 2.3 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±20% | 0603 | 3.5 | X5R Klasse II | 0.4 | -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206076 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | 25 | – | – | – | 0.5 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | 10 | X7R Klasse II | 0.4 | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012106018 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 16 V(DC) | 2.2 µF | 16 | – | – | – | 0.05 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±20% | 0603 | 10 | X5R Klasse II | 0.4 | -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 742792121 | SPEC | 8 Dateien | WE-CBF SMT-Ferrit | – | – | – | – | – | – | -55 °C bis zu +125 °C | – | 3.2 | 1.6 | 1.1 | – | – | 1206 | – | – | 0.5 | -55 °C up to +125 °C | – | 300 | 330 | 110 MHz | 3000 | 0.06 | High Current | – | – | – | – | – | – | – | – | – | 1500 | ||
| 74279218 | SPEC | 9 Dateien | WE-CBF SMT-Ferrit | – | – | – | – | – | – | -55 °C bis zu +125 °C | – | 3.2 | 1.6 | 1.1 | – | – | 1206 | – | – | 0.5 | -55 °C up to +125 °C | – | 600 | 700 | 90 MHz | 2000 | 0.1 | High Current | – | – | – | – | – | – | – | – | – | 1200 | ||
 | 820573011 | SPEC | 6 Dateien | WE-VD Disk Varistor | – | – | – | – | – | – | -40 °C bis zu +85 °C | – | 9 | 4.1 | 12.5 | – | – | 7 mm | – | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | – | 300 | 385 | 470 | 1200 | 35 | 0.25 | 230 VAC | Ja | – | – | ||
 | 7447021 | SPEC | – | 6 Dateien | WE-FI Funkentstördrossel | – | – | – | – | – | – | – | – | 16.5 | 9.7 | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | – | – | – | 0.08 | – | – | – | – | – | – | – | – | – | 100 | 2500 | |
| 750343888 | SPEC | – | – | PFC Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | VR (V (DC)) | Sicherheitsklasse | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Betriebstemperatur | Raster (mm) | L (mm) | W (mm) | H (mm) | Verpackung | Tol. C | Bauform | DF (%) | Keramiktyp | Fl (mm) | Betriebstemperatur | Q | 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) | Anwendung | VDE-Zulassung | L (µH) | IR (mA) | Muster |
|---|