This offline flyback reference design uses the UCC28740 controller to generate 3 isolated outputs (5 V at 30 mA, 15 V at 20 mA, 15 V at 20 mA) from an AC input (180 VAC - 264 VAC). The design can provide 750-mW output power. The UCC28740 uses an optical coupler to regulate the 5-V output and to improve transient response. The valley-switching technique reduces switching losses and keeps the efficiency high.
| Output voltage options | PMP30462.1 | PMP30462.2 | PMP30462.3 |
|---|---|---|---|
| Vin (Min) (V) | 180 | 180 | 180 |
| Vin (Max) (V) | 264 | 264 | 264 |
| Vout (Nom) (V) | 15 | 15 | 5 |
| Iout (Max) (A) | .02 | .02 | .03 |
| Output Power (W) | .3 | .3 | .15 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated |
| Input Type | AC | AC | AC |
| Topology | Flyback- Quasi Resonant | Flyback- Quasi Resonant | Flyback- Quasi Resonant |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 180-VAC - 264-VAC Input Multiple Output Flyback Reference Design | Nov. 30, 2018 |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.