This fully-tested reference design is a high-efficiency, high-power-density, AC/DC adapter solution with a wide input voltage range (100- to 240-V AC) for laptop adapters and smartphone charger applications. This design consists of a front-end transition-mode (TM) power factor correction (PFC) circuit based on the UCC28056, followed by an active-clamp flyback for isolated DC/DC conversion based on the UCC28780.
| Output voltage options | TIDA-01623.1 |
|---|---|
| Vin (Min) (V) | 100 |
| Vin (Max) (V) | 240 |
| Vout (Nom) (V) | 20 |
| Iout (Max) (A) | 5 |
| Output Power (W) | 100 |
| Isolated/Non-Isolated | Isolated |
| Input Type | AC |
| Topology | Boost- Transition Mode^Flyback- Active Clamp |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
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 | ||
|---|---|---|---|---|
| * | Design guide | 30-W/in^3, 93.4% Efficiency, 100-W AC/DC Adapter Reference Design (Rev. A) | Apr. 26, 2019 | |
| Technical article | Gain ultra-high power density for 100-W USB Power Delivery adapters | PDF | HTML | Mar. 05, 2019 | |
| Application note | Designing with the ATL431LI | Nov. 27, 2018 |
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