This reference design uses a single UCC25800-Q1 to drive two LLC transformers. Each isolated output feeds into a TPS7A39 dual-channel positive- and negative-output LDO. PMP23124 can be used to bias two wideband-gap FETs that require a positive and negative voltage to drive. Each output can be loaded to 2.8 W.
| Output voltage options | PMP23124.1 | PMP23124.2 | PMP23124.3 |
|---|---|---|---|
| Vin (Min) (V) | 15 | 20 | 20 |
| Vin (Max) (V) | 15 | 30 | 30 |
| Vout (Nom) (V) | 20 | 15 | -5 |
| Iout (Max) (A) | .15 | .15 | .15 |
| Output Power (W) | 3 | 2.25 | .75 |
| Isolated/Non-Isolated | Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC | DC |
| Topology | Half Bridge- LLC | Linear Regulator | Linear Regulator |
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 overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
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
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Half-Bridge LLC Dual-Output Bias-Supply Pair Reference Design (Rev. A) | PDF | HTML | May 10, 2022 |
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.