650-V 30-mΩ GaN FET daughter card reference design


Design files


This reference design features two LMG352XR0X0 650-V GaN FETs with an integrated driver and protection in a half-bridge configuration with all the required bias circuit and logic or power level shifting. Power stage, gate-driving, high-frequency current loops are fully enclosed on the board to minimize power loop parasitic inductance for reducing voltage overshoot and improving performance. This design is configured for a socket style external connection for easy interface with external power stages to run the LMG352XR0X0 in various applications.

  • Open loop design to evaluate performance of LMG352XR030
  • Cycle-by-cycle overcurrent and latched short-circuit protection
  • Sized to meet higher power density
  • Input voltage operates up to 650 V
  • Self-protection from internal overtemperature and under voltage lockout (UVLO) monitoring
Output voltage options PMP23249.1
Vin (Min) (V) 300
Vin (Max) (V) 650
Vout (Nom) (V) 380
Iout (Max) (A) 9.4
Output Power (W) 3572
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Other
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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.

TIDT304.PDF (899 K)

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


Detailed overview of design layout for component placement

TIDMAY2.ZIP (25596 K)

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


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
Test report Compact LMG3522R030-Q1 650-V, 30-mΩ, Half-Bridge Daughter Card Reference Design PDF | HTML Oct. 20, 2022

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