This reference design is a replacement for the now obsolete PMP20289.
PMP21842
12-V/500-W resonant converter reference design with HV GaN FET
PMP21842
Overview
This high-frequency resonant converter reference design regulates a 12-V output from a 380-V to 400-V input voltage range using a resonant tank with 500 kHz resonant frequency. A peak efficiency of 96.0% (bias supply included) is achieved with this design using our high-voltage GaN device along with UCD3138A and UCD7138 to optimize the dead time and synchronous rectifier (SR) conduction.
Features
- 500 kHz resonant frequency
- Nominal 390-V to 12-V/500-W conversion
- 96.0% efficiency at 390-V input with bias supply included
- Power stage X Y dimensions of 1.9" x 3"
| Output voltage options | PMP21842.1 |
|---|---|
| Vin (Min) (V) | 380 |
| Vin (Max) (V) | 400 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 42 |
| Output Power (W) | 504 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Half Bridge- LLC |
Industrial
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDT088.PDF (3543 K)
Test results for the reference design, including efficiency graphs, test prerequisites and more
TIDRYZ1.ZIP (254 K)
Detailed schematic diagram for design layout and components
TIDRYZ2.ZIP (153 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRYZ3.PDF (119 K)
Detailed overview of design layout for component placement
TIDRYZ5.ZIP (584 K)
Files used for 3D models or 2D drawings of IC components
TIDCFA4.ZIP (1731 K)
Design file that contains information on physical board layer of design PCB
TIDRYZ4.PDF (714 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Gallium nitride (GaN) power stages
LMG3410R070 — 600-V 70mΩ GaN with integrated driver and protection
Data sheet: PDF | HTMLGallium nitride (GaN) power stages
LMG3411R050 — 600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection
Data sheet: PDF | HTMLGallium nitride (GaN) power stages
LMG3411R070 — 600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection
Data sheet: PDF | HTMLMOSFETs
CSD18510Q5B — 40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.96 mOhm
Data sheet: PDF | HTMLTechnical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 12-V/500-W resonant converter reference design with HV GaN FET | Feb. 04, 2019 |
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