Low EMI, high efficiency, high power factor and reliable power supply are main focus of the PMP8920 design for telecom applications. Transient mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP8911. In addition, synchronous rectifier (SR) IC UCC24610 is applied to LLC output rectifier stage. Low EMI is expected with zero voltage switching on TM-PFC and LLC-SRC switches. An overall 91% efficiency is achieved at 100W full load. In addition, several protections are embedded into this design which includes input under-voltage protection, input over-voltage protection, output over-voltage protection, and output hic-cup over-power protection.
| Output voltage options | PMP8920.1 |
|---|---|
| Vin (Min) (V) | 85 |
| Vin (Max) (V) | 265 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 9 |
| Output Power (W) | 108 |
| Isolated/Non-Isolated | Isolated |
| Input Type | AC |
| Topology | Boost- PFC^Flyback- DCM^Half Bridge- Resonant |
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 schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Design file that contains information on physical board layer of design PCB
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Technical article | Power Tips: Get to know LLC series resonant converter design | Sep. 23, 2014 | ||
| Technical article | Power Tips: How to Implement Synchronous Rectifiers in a Resonant LLC Half-Bridge | Dec. 10, 2013 | ||
| Test report | PMP8920 Test Results | Aug. 09, 2013 |
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.