This reference design is a compact and high efficient two-stage power supply. The front-end stage is a CCM power factor correction (PFC) based on UCC28180.The second stage is based on UCC256304, which drives a resonant 310 W LLC converter with two outputs, 19 V and 56 V. The board does not need any auxiliary supply and draws only 250 mW from mains (with PFC off), while supplying 150 mW load.
| Output voltage options | PMP30521.1 | PMP30521.2 | PMP30521.3 |
|---|---|---|---|
| Vin (Min) (V) | 90 | 350 | 350 |
| Vin (Max) (V) | 264 | 420 | 420 |
| Vout (Nom) (V) | 390 | 56 | 19 |
| Iout (Max) (A) | .85 | 3.75 | 5.26 |
| Output Power (W) | 331.5 | 210 | 99.94 |
| Isolated/Non-Isolated | Non-Isolated | Isolated | Isolated |
| Input Type | AC | DC | DC |
| Topology | PFC- Boost | Half Bridge- LLC | Half Bridge- LLC |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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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 | 93% Full-Load Efficiency (60% at 125 mW), 310-W Industrial AC/DC Ref Design | Apr. 02, 2019 |
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