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Overview
| Topology | Flyback Converter |
| Input voltage | 90-264 V |
| Switching frequency | 25-420 kHz |
| Output 1 | 12 V / 3 A |
Description
This design note describes a 45 watt, Type C interface PD2.0, universal AC input, constant voltage power supply intended for smart phone, PAD and NB adaptor supporting PD2.0 orQC2.0 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 NCP1340B3 HF PWM controller, NCP43080D synchronous rectified controller, NTMFS6B03 synchronous MOSFET and ATP104 Switch MOSFET. This Design Note provides the complete circuit schematic details, PCB and BOM for 45W Type C Interface PD2.0 Power adapter solution which supports PD output (5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/2.25A).This design combined with CanYon’s CY2211 PD2.0 protocal controller to provide PD2.0 and QC2.0 functions. This design also proposes a dual auxiliary power supply to supply PWMcontroller, 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 shutsdown zener bias of high voltage Vcc while low voltage auxiliary voltage supplies controller.This design also uses synchronous rectified controller to provide high efficiency and also uses an external Vcc pulse regulator to supply synchronous controller to ensure controller can works below 4v.
Features
- Universal AC input range (90 – 264 Vac)
- Very low standby (5V & 230Vac) power consumption with no cable plug in
- Very low ripple and noise
- Inherent SCP and OCP protection
- High operation frequency up to 150kHz
- High power density (1.15 W/cm3)
- Quick switching off FET while unplugging cable and switching on FET at Vbus dropping to 5v while plugging cable again
- Quasi-Resonant current mode control with Valley Switching
- Valley lockout avoids audible noise at valley jumping operation
- Support TYPE-C PD2.0&QC2.0 protocol
- Adaptive Output OVP and UVP
- Open loop protection
- Board size: 57mmx36mmx19mm
Typical applications
- Smart phone, PAD and NB adapter supporting PD2.0 and QC2.0
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | ISAT,10%(A) | fres(MHz) | Version | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | IR(mA) | L(mH) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | VRMS(V) | VDC(V) | VBR(V) | IPeak(A) | Wmax(J) | PDiss(W) | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-VD Disk Varistor, 230 VAC, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-VD Disk Varistor | – | – | – | – | – | – | – | – | – | VersionTHT | – | – | – | – | – | – | – | – | – | – | – | Length9 mm | Width4.1 mm | Height12.5 mm | MountTHT | AC Operating Voltage300 V | DC Operating Voltage385 V | (Reverse) Breakdown Voltage470 V | (Reverse) Peak Pulse Current1200 A | Energy Absorption35 J | Power Dissipation0.25 W | VDE ApprovalYes | ||||
 | WCAP-FTXX Film Capacitors, Across the mains, 68 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance68 nF | Safety ClassX2 | Rate of Voltage Rise400 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch7.5 mm | PackagingBulk | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage310 V (AC) | – | – | Length10 mm | Width6 mm | Height12 mm | MountBoxed THT | – | – | – | – | – | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | VersionSMT | Impedance @ 100 MHz600 Ω | Maximum Impedance700 Ω | Maximum Impedance150 MHz | Rated Current 22000 mA | DC Resistance0.15 Ω | TypeHigh Current | Rated Current1500 mA | – | – | – | – | Length2 mm | Width1.2 mm | Height0.0009 mm | MountSMT | – | – | – | – | – | – | – | ||||
| WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | VersionSMT | Impedance @ 100 MHz1000 Ω | Maximum Impedance1000 Ω | Maximum Impedance100 MHz | Rated Current 21000 mA | DC Resistance0.3 Ω | TypeHigh Current | Rated Current800 mA | – | – | – | – | Length2 mm | Width1.2 mm | Height0.9 mm | MountSMT | – | – | – | – | – | – | – | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | – | VersionTHT | – | – | – | – | DC Resistance0.35 Ω | – | Rated Current700 mA | Inductance10 mH | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.5 mm | Height18 mm | MountTHT | – | – | – | – | – | – | VDE Approval40042670 | ||||
 | WE-TI Radial Leaded Wire Wound Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | – | Saturation Current @ 10%1.2 A | Self Resonant Frequency10.6 MHz | VersionHeat Shrinking Tube | – | – | – | – | DC Resistance0.34 Ω | – | Rated Current1180 mA | Inductance0.047 mH | – | – | MaterialNiZn | Length6 mm | Width6 mm | Height8.5 mm | MountTHT | – | – | – | – | – | – | – | ||||
 | 750343542 | Transformer, –, – | Downloads5 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | PackagingTray | – | – | – | – | – | – | – | – | – | – | Inductance0.36 mH | – | Insulation Test Voltage3000 V (AC) | – | Length21.59 mm | Width21.59 mm | Height17.27 mm | MountTHT | – | – | – | – | – | – | – |