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Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 100 kHz |
| Output 1 | 15 V / 0.05 A |
| Output 2 | 15 V / 1 A |
| Output 3 | 15 V / 0.05 A |
| IC revision | B |
Description
This reference design takes a universal Vac input and creates three isolated 15-Vdc outputs. The main output can be loaded up to 1-A and achieves over 86% efficiency. The other isolated 15-V outputs can be loaded to 50-mA. These outputs have linear regulators to keep the voltages within 1% regardless of cross-loading conditions.
Features
- Primary side regulated flyback to create multiple isolated outputs
- Low profile >20mm design
- 3% accuracy on 1-A output, 1% accuracy on 50-mA outputs
Typical applications
- Standby Supply for TV and Desktop
- USB-Compliant Adapters and Chargers for Consumer Electronics / White Goods
More information
Application Notes
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | Packaging | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular, 2, Rising Cage Clamp | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | Pitch3.81 mm | – | PackagingBox | Rated Current10 A | – | – | – | – | – | Length7.62 mm | – | – | MountTHT | |||
 | WE-CMB Common Mode Power Line Choke, 4, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | Pins4 | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current1 A | Inductance5 mH | DC Resistance220 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.8 mm | Height18 mm | MountTHT | ||||
 | WE-FI Leaded Toroidal Line Choke, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current2 A | Inductance0.14 mH | DC Resistance110 mΩ | – | – | – | Length13.5 mm | Width8.6 mm | – | MountTHT | |||
 | WCAP-AT1H Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-AT1H Aluminum Electrolytic Capacitors | – | – | – | – | – | Capacitance47 µF | Endurance 10000 | Ripple Current1200 mA | Leakage Current852 µA | Dissipation Factor20 % | Pitch7.5 mm | Diameter16 mm | PackagingAmmopack | – | – | – | Rated Voltage400 V (AC) | – | – | Length25 mm | – | – | MountRadial THT | ||||
 | 750318302 | Offline Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Inductance0.45 mH | – | – | Insulation Test Voltage3000 V (AC) | – | Length26.3 mm | Width33 mm | Height14.3 mm | MountTHT |