This single-stage LLC converter reference design illustrates how to convert AC input voltage (100-120 Vac and 200-240 Vac) to isolated ±42-V DC output with the UCC256302 resonant controller. The design has a regulated ±42-V output that can handle up to 6 A of continuous output current and 12 A of peak current for 100 ms.
| Output voltage options | PMP40379.1 | PMP40379.2 | PMP40379.3 | PMP40379.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 100 | 100 | 200 | 200 |
| Vin (Max) (V) | 120 | 120 | 240 | 240 |
| Vout (Nom) (V) | 42 | -42 | 42 | -42 |
| Iout (Max) (A) | 6 | 6 | 6 | 6 |
| Output Power (W) | 252 | 252 | 252 | 252 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated | Isolated |
| Input Type | AC | AC | AC | AC |
| Topology | Half Bridge- LLC | Half Bridge- LLC | 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
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 500-W, Single Stage LLC Power Supply Reference Design for Audio Amplifier | Nov. 09, 2018 | |
| Application note | Designing With the Improved TL431LI (Rev. A) | Jun. 28, 2019 |
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