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Overview
| Topology | Flyback Converter |
| Input voltage | 90-264 V |
| Switching frequency | 25-800 kHz |
| Output 1 | 12 V / 2 A |
Description
This design note describes a 30 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 / 2.5 A, 15 V / 2 A, 20 V / 1.5 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
- Universal AC input range (90 – 264 Vac)
- Very low standby (5 V & 230 Vac) 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 (1W/cm3)
- Quick switching off FET while unplugging cable and switching on FET at Vbus dropping to 5 V while plugging cable again
- Quasi-Resonant current mode control with Valley Switching
- Valley lockout avoids audible noise at valley jumping operation
- Support TYPE-C PD3.0 & QC3.0 protocol
- Adaptive Output OVP and UVP
- Open loop protection
- Board size: 57mmx36mmx19mm
Typical applications
- Flat TV SMPS
- Phone and Tablet Adapters
- Notebook Adapters / Computer Power Supplies
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | Tol. C | Size | Operating Temperature | Q | DF (%) | Ceramic Type | Fl (mm) | ISAT (A) | fres (MHz) | Version | Interface Type | Gender | Pins | IR (mA) | Working Voltage (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | IR (mA) | L (mH) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006051 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 10 pF | – | – | – | 10 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 | – | – | – | – | – | – | – | – | – | ||
| 885012206077 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 100 pF | – | – | – | 10 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 | – | – | – | – | – | – | – | – | – | ||
| 885012206083 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | – | – | – | 10 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 | – | – | – | – | – | – | – | – | – | ||
| 885012207116 | SPEC | 6 files | WCAP-CSGP MLCCs 100 V(DC) | 1 nF | – | – | – | 10 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 | – | – | – | – | – | – | – | – | – | ||
| 885012206094 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 68 nF | – | – | – | 7.4 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 | – | – | – | – | – | – | – | – | – | ||
 | 890324023028 | SPEC | 8 files | WCAP-FTX2 Film Capacitors | 220 nF | X2 | 300 | 0.1 | 30 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 | – | ||
| 885012206076 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | – | – | – | 0.5 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 | – | – | – | – | – | – | – | – | – | ||
 | 742792040 | SPEC | 9 files | 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 | 0.9 | SMT | – | – | – | – | – | – | – | – | ||
| 742792096 | SPEC | 8 files | 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 | – | – | – | – | – | – | – | – | ||
 | 744821110 | SPEC | 10 files | 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 | ||
 | 820573011 | SPEC | 6 files | 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 | ||
 | 7447462470 | SPEC | 8 files | 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 | – | – | – | – | – | – | – | – | ||
 | 632723300011 | SPEC | – | 6 files | 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 | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | Tol. C | Size | Operating Temperature | Q | DF (%) | Ceramic Type | Fl (mm) | ISAT (A) | fres (MHz) | Version | Interface Type | Gender | Pins | IR (mA) | Working Voltage (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | IR (mA) | L (mH) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Samples |
|---|