This automotive µDC/DC converter reference design demonstrates a non-synchronous half-bridge inductor inductor-capacitor (LLC) converter, which covers an input voltage range of 225V to 450V using the UCC256612-Q1. The output voltage is 48V with a maximum load current of 6.25A. The design can operate down to 196V before turning off. Secondary-side regulation is achieved by using the opto-emulator ISOM8110-Q1.
| Output voltage options | PMP31342.1 |
|---|---|
| Vin (Min) (V) | 220 |
| Vin (Max) (V) | 450 |
| Vout (Nom) (V) | 48 |
| Iout (Max) (A) | 6.25 |
| Output Power (W) | 300 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | 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 overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
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Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Automotive 300W μDC/DC Converter Reference Design Using Half-Bridge LLC | PDF | HTML | Aug 5, 2025 |
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