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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 (A) | RDC max. (Ω) | fres (MHz) | Version | Application | Interface Type | Type | Gender | Pins (Value) (pcs) | Mount | IR (A) | Working Voltage (V (AC)) | Packaging | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | L (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7447462010 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | 1 | 8.5 | 8 | 0.015 | 140 | Heat Shrinking Tube | – | – | – | – | – | THT | – | – | – | – | – | – | – | – | – | – | – | – | 6 | ||
| 7447462221 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | 220 | 0.5 | 0.5 | 1.2 | 4.8 | Heat Shrinking Tube | – | – | – | – | – | THT | – | – | – | – | – | – | – | – | – | – | – | – | 6 | ||
 | 870025374005 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-PTG5 Aluminum Polymer Capacitors | – | – | – | – | – | – | – | – | – | – | – | Radial THT | – | – | Ammopack | 330 µF | 16 | 2000 | -55 °C up to +105 °C | 4500 | 528 | 8 | 3.5 | 8 | 8 | ||
 | 614104150121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-COM USB 2.0 Type A Horizontal THT Short Type | – | 1.5 | – | – | – | – | USB 2.0 | Type A | Horizontal - Short Type | Receptacle | 4 | THT | 1.5 | 30 | Tape and Reel & Mylar | – | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | |
| 750342872 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7447462010 | SPEC | |
| 7447462221 | SPEC | |
| 870025374005 | SPEC | |
| 614104150121 | SPEC | – |
| 750342872 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | Application | Interface Type | Type | Gender | Pins (Value) (pcs) | Mount | IR (A) | Working Voltage (V (AC)) | Packaging | C | VR (V (DC)) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | DF (%) | Pitch (mm) | Ø D (mm) | L (mm) | Samples |
|---|