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Overview
| Topology | Flyback Converter |
| Input voltage | 90-264 V |
| Output 1 | 5.5 V / 3 A |
Description
This design note describes a 15 watt, universal AC input, isolated Quasi-Resonant flyback converter for smart phone, tablet charger and smart socket power supply etc.The featured power supply is a primary side constant current and secondary constant voltage regulation utilizing ON semiconductor’s new NCP1361 current mode controller which is in TSOP6 package. This Design Note provides the complete circuit schematic details, layout, test data and BOM for 5.1 volts, 3 amps power supply.
Features
Primary Side CC Regulation and Secondary CV Regulation Quasi-Resonant current mode control with Valley Switching Valley lockout avoids audible noise at valley jumping operation External 10M startup resistor Built in 4ms soft start 80kHz maximum clamp frequency operation Adjustable voltage control loop compensation Wide Operation VCC range (up to 30 V) Cycle by cycle current limit Support external 2200Uf startup Built in Vcc OVP (typical 26v) Built in output UVP in CC mode (3V+/-6.7%) Output OCP, SCP, OVP and controller OTP function CS pin open and short protection Vs pin open and short protection Meet COC V5 Tier 2 100pF Y capacitor “Travel Adapter” (TA) form factor Size: 43.5mm x 35mm x 15mm
Typical applications
- Mobile, tablet Charger,adapter
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Interface Type | Type | Variant | Gender | Pins | Mount | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 1 µH, 8.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance1 µH | Rated Current8.5 A | Saturation Current @ 10%8.5 A | DC Resistance0.015 Ω | Self Resonant Frequency140 MHz | VersionHeat Shrinking Tube | – | – | – | – | – | – | – | – | Length6 mm | – | – | – | – | – | – | MountTHT | – | ||||
| WE-TI Radial Leaded Wire Wound Inductor, 220 µH, 0.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance220 µH | Rated Current0.5 A | Saturation Current @ 10%0.57 A | DC Resistance1.2 Ω | Self Resonant Frequency4.8 MHz | VersionHeat Shrinking Tube | – | – | – | – | – | – | – | – | Length6 mm | – | – | – | – | – | – | MountTHT | – | ||||
 | WCAP-PTG5 Aluminum Polymer Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PTG5 Aluminum Polymer Capacitors | – | – | – | – | – | – | Capacitance330 µF | Rated Voltage16 V (DC) | Endurance 2000 | Ripple Current4500 mA | Leakage Current528 µA | Dissipation Factor8 % | Pitch3.5 mm | Diameter8 mm | Length8 mm | PackagingAmmopack | – | – | – | – | – | MountRadial THT | – | ||||
 | WR-USB Standard Connectors, –, 1.5 A | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Standard Connectors | – | Rated Current1.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel & Mylar | Interface TypeType A | TypeHorizontal - Short Type | Variantwith Clips | GenderReceptacle | Pins4 | MountTHT | Working Voltage30 V (AC) | ||
750342872 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |