IC manufacturers Onsemi

IC manufacturers (99)

Onsemi NCP1342

Quasi-Resonant Flyback Controller with Valley Lock-Out Switching

Overview

TopologyFlyback Converter
Input voltage90-264 V
Switching frequency25 kHz
Output 112 V / 3 A

Description

This design note describes a 45 W, Type C interface PD3.0, universal AC input, constant voltage power supply intended for smart phone, PAD and NB adaptor supporting PD3.0 or QC3.0 protocol, where isolation from the AC mains is required, and low cost, high efficiency, and low standby power are essential. The featured power supply is a simple QR flyback topology utilizing ON Semiconductor’s NCP1342 HF PWM controller, NCP4306D synchronous rectified controller, NTMFS6B03 synchronous MOSFET and ATP104 Switch MOSFET. This Design Note provides the complete circuit schematic details, PCB and BOM for 45 W Type C Interface PD3.0 Power adapter solution which supports PD output (5 V / 3 A, 9 V / 3 A, 12 V / 3 A, 15 V / 3 A, 20 V / 2.25 A). This design combined with Weltrend WT6632F PD3.0 protocol controller to provide PD3.0 and QC3.0 functions. This design also proposes a dual auxiliary power supply to supply PWM controller, the PWM controller is supplied by high voltage auxiliary voltage at low output voltage and supplied by low voltage auxiliary voltage at high output voltage and also shuts down zener bias of high voltage Vcc while low voltage auxiliary voltage supplies controller. This design also uses NCP4306 synchronous rectified controller to provide high efficiency and also has no external Vcc regulator to supply synchronous controller to ensure controller can works below 3.6 V.

Features

  • Integrated High−Voltage Startup Circuit with Brownout Detection
  • Integrated X2 Capacitor Discharge Capability
  • Wide VCC Range from 9 V to 28 V
  • 28 V VCC Overvoltage Protection
  • Abnormal Overcurrent Fault Protection for Winding Short Circuit or Saturation Detection
  • Internal Temperature Shutdown
  • Valley Switching Operation with Valley−Lockout for Noise−Free Operation
  • Frequency Foldback with 25 kHz Minimum Frequency Clamp for Increased Efficiency at Light Loads
  • Rapid Frequency Foldback for Fast Reduction of SwitchingFrequency at Light Loads
  • Skip Mode with Quiet−Skip Technology for Highest Performance During Light Loads
  • Minimized Current Consumption for No Load Power Below 30 mW
  • Frequency Jittering for Reduced EMI Signature
  • Latching or Auto−Recovery Timer−Based Overload Protection
  • Adjustable Overpower Protection (OPP)
  • Adjustable Maximum Frequency Clamp
  • Fault Pin for Severe Fault Conditions, NTC Compatible for OTP
  • 4 ms Soft−Start Timer

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 seriesCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQDF
(%)
Ceramic TypeFl
(mm)
ISAT
(A)
fres
(MHz)
VersionInterface TypeGenderPins (Value)
(pcs)
IR
(mA)
Working Voltage
(V (DC))
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeIR
(mA)
L
(mH)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
ApplicationVDE Approval Samples
885012006051SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)10 pF10 GΩ 7" Tape & Reel ±5% 0603 -55 °C up to +125 °C 600 NP0 Class I 0.4 50 1.6 0.8 0.8
885012006056SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)68 pF10 GΩ 7" Tape & Reel ±5% 0603 -55 °C up to +125 °C 1000 NP0 Class I 0.4 50 1.6 0.8 0.8
885012206083SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)1 nF10 GΩ 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 2.5 X7R Class II 0.4 50 1.6 0.8 0.8
885012207116SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC)1 nF10 GΩ -55 °C up to +125 °C 7" Tape & Reel ±10% 0805 -55 °C up to +125 °C 2.5 X7R Class II 0.5 100 2 1.25 0.8
885012206094SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)68 nF7.4 GΩ 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 3 X7R Class II 0.4 50 1.6 0.8 0.8
890324023028SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors220 nF X2 300 0.130 GΩ -40 °C up to +105 °C 10 Bulk ±10% Pitch 10 mm -40 °C up to +105 °C 275 13 8 14 Boxed THT Across the mains
885012206076SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)1 µF0.5 GΩ 7" Tape & Reel ±10% 0603 -55 °C up to +125 °C 10 X7R Class II 0.4 25 1.6 0.8 0.8
742792040SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +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
742792096SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +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
744821110SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +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
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 7 mm -40 °C up to +85 °C THT 9 4.1 12.5 THT 300 385 470 1200 35 0.25 230 VAC Yes
7447462470SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 5075 -40 °C up to +125 °C 1.2 10.6 Heat Shrinking Tube 0.34 1180 0.047 6 6 8.5 THT
632723300011SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT1000 MΩ Tape and Reel -40 °C up to +105 °C Type C Receptacle 24 20 Horizontal 5000 THR USB 3.1
Order Code Data­sheet Simu­lation
885012006051SPEC
885012006056SPEC
885012206083SPEC
885012207116SPEC
885012206094SPEC
890324023028SPEC
885012206076SPEC
742792040SPEC
742792096SPEC
744821110SPEC
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.

7447462470SPEC
632723300011SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureQDF
(%)
Ceramic TypeFl
(mm)
ISAT
(A)
fres
(MHz)
VersionInterface TypeGenderPins (Value)
(pcs)
IR
(mA)
Working Voltage
(V (DC))
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeIR
(mA)
L
(mH)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
ApplicationVDE Approval Samples