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Overview
| Topology | Flyback Converter |
| Input voltage | 85-480 V |
| Output 1 | 24 V / 0.62 A |
| IC revision | C |
Description
This reference design uses a UCC28742 flyback controller and an ATL432LI shunt reference to produce an isolated 24-V output capable of 0.625 A from an 85-V to 480-Vac input. All components are placed on one side of the board to reduce complexity and cost. The design can achieve 80% efficiency across various input conditions.
Features
- Compact size (2" x 3.31") minimizes solution size area
- Single-side assembly and 2-layer PCB for reduced manufacturing costs
- Low noise output of less than 100-mV peak-to-peak voltage ripple for sensitive loads
Typical applications
- Electricity meter
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | fres (MHz) | IR (A) | L (µH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744373240033 | SPEC | 8 files | WE-LHMI SMT Power Inductor | 2 | – | – | – | – | – | 10.5 | 11.2 | 22 | 143 | – | 0.33 | 8.6 | – | – | – | 4.45 | 4.06 | 1.8 | SMT | ||
 | 691214310002 | SPEC | – | 6 files | WR-TBL Series 2143 - 3.81 mm Horiz. Entry Modular | 2 | Rising Cage Clamp | PCB | Yes | Horizontal | 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | 10 | – | – | – | – | – | 7.62 | – | – | THT | |
 | 744821150 | SPEC | 9 files | WE-CMB Common Mode Power Line Choke | 4 | – | – | – | – | – | – | – | – | – | 1 | 5000 | 220 | 250 | 1500 | MnZn | 15 | 7.8 | 18 | THT | ||
 | 7447031 | SPEC | – | 6 files | WE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | – | – | 2 | 140 | 110 | – | – | – | 13.5 | 8.6 | – | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744373240033 | SPEC | |
| 691214310002 | SPEC | – |
| 744821150 | SPEC | |
| 7447031 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | fres (MHz) | IR (A) | L (µH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|