IC manufacturers Onsemi

IC manufacturers (99)

Onsemi NCP1342 | Demoboard NCP1342PD90WGEVB

NCP1342: Quasi-Resonant Flyback Controller with Valley Lock-Out Switching

Overview

TopologyFlyback Converter
Input voltage90-264 V
Output 120 V / 4.5 A
IC revisionA

Description

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.

Features

  • 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

Typical applications

  • Medium or High Power AC-DC Adapters, Ultra High Density AC-DC Adapters, USB PD Compliant

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCVR
(V (DC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingTol. CSizeDF
(%)
Ceramic TypeFl
(mm)
Operating TemperatureQZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
ApplicationVDE ApprovalL
(µH)
IR
(mA)
Samples
885012006051SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)10 pF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±5% 0603 NP0 Class I 0.4 -55 °C up to +125 °C 600
885012006056SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)68 pF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±5% 0603 NP0 Class I 0.4 -55 °C up to +125 °C 1000
885012206077SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 pF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 2.5 X7R Class II 0.4 -55 °C up to +125 °C
885012206080SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)330 pF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 2.5 X7R Class II 0.4 -55 °C up to +125 °C
885012206083SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)1 nF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 2.5 X7R Class II 0.4 -55 °C up to +125 °C
885012206085SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)2.2 nF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 2.5 X7R Class II 0.4 -55 °C up to +125 °C
885342207016SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSMH Mid and High Voltage2.2 nF 100010 GΩ -55 °C up to +125 °C 2 1.25 1.25 7" Tape & Reel ±10% 0805 2.5 X7R Class II 0.5 -55 °C up to +125 °C
885012206089SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)10 nF 5010 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 2.5 X7R Class II 0.4 -55 °C up to +125 °C
885012206094SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)68 nF 507.4 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 3 X7R Class II 0.4 -55 °C up to +125 °C
885012206095SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 nF 505 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 3 X7R Class II 0.4 -55 °C up to +125 °C
890324024002SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors220 nF 275 X2 240 0.130 GΩ -40 °C up to +105 °C 12.5 15 7 12.5 Bulk ±10% Pitch 12.5 mm -40 °C up to +105 °C Across the mains
885012106019SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)220 nF 252.3 GΩ 1.6 0.8 0.8 7" Tape & Reel ±20% 0603 3.5 X5R Class II 0.4 -55 °C up to +85 °C
885012206076SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)1 µF 250.5 GΩ 1.6 0.8 0.8 7" Tape & Reel ±10% 0603 10 X7R Class II 0.4 -55 °C up to +125 °C
885012106018SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)2.2 µF 160.05 GΩ 1.6 0.8 0.8 7" Tape & Reel ±20% 0603 10 X5R Class II 0.4 -55 °C up to +85 °C
742792121SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +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
74279218SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +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
820573011SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

6 files Active i| Production is active. Expected lifetime: >10 years.WE-VD Disk Varistor -40 °C up to +85 °C 9 4.1 12.5 7 mm -40 °C up to +85 °C 300 385 470 1200 35 0.25 230 VAC Yes
7447021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke 16.5 9.7 -40 °C up to +105 °C 0.08 100 2500
750343888SPEC
Active i| Production is active. Expected lifetime: >10 years. PFC Inductor
Order Code Data­sheet Simu­lation
885012006051SPEC
885012006056SPEC
885012206077SPEC
885012206080SPEC
885012206083SPEC
885012206085SPEC
885342207016SPEC
885012206089SPEC
885012206094SPEC
885012206095SPEC
890324024002SPEC
885012106019SPEC
885012206076SPEC
885012106018SPEC
742792121SPEC
74279218SPEC
820573011SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

7447021SPEC
750343888SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCVR
(V (DC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingTol. CSizeDF
(%)
Ceramic TypeFl
(mm)
Operating TemperatureQZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
ApplicationVDE ApprovalL
(µH)
IR
(mA)
Samples