Texas Instruments LMG352XEVM-04X User Manual

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User's Guide
LMG352XEVM-04X User Guide
The LMG352XEVM-04X 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/power level shifting. Essential power
stage and gate-driving, high-frequency current loops are fully enclosed on the board to minimize power loop
parasitic inductance for reducing voltage overshoots and improving performance. The LMG352XEVM-04X is
configured for a socket style external connection for easy interface with external power stages to run the
LMG352XR0X0 in various applications. Refer to the LMG352XR0X0 data sheet before using this EVM.
1 General TI High Voltage Evaluation User Safety Guidelines .............................................................................................
1.1 Safety and Precautions......................................................................................................................................................
2 Introduction.............................................................................................................................................................................5
2.1 LMG352XEVM-04X Daughter Card...................................................................................................................................
2.2 Mother Boards....................................................................................................................................................................9
2.3 Typical Applications............................................................................................................................................................9
2.4 Features.............................................................................................................................................................................
3 LMG352XEVM-04X Schematic.............................................................................................................................................
4 Mother Board Schematic......................................................................................................................................................11
5 Recommended Footprint.....................................................................................................................................................
6 Test Equipment.....................................................................................................................................................................
7 Test Procedure When Paired With
7.1 Setup................................................................................................................................................................................15
7.2 Start-Up and Operating Procedure..................................................................................................................................
7.3 Test Results......................................................................................................................................................................17
7.4 Shutdown Procedure........................................................................................................................................................18
7.5 Additional Operating Notes..............................................................................................................................................
8 Test Procedure When Paired With LMG34XX-BB-EVM.....................................................................................................
8.1 Setup................................................................................................................................................................................19
8.2 Start-Up and Operating Procedure..................................................................................................................................
8.3 Shutdown Procedure........................................................................................................................................................22
8.4 Additional Operation Notes..............................................................................................................................................
9 Bill of Materials.....................................................................................................................................................................
10 Revision History.................................................................................................................................................................
Figure 2-1. LMG352XEVM-04X Block Diagram..........................................................................................................................
Figure 2-2. Front Side View of the EVM......................................................................................................................................
Figure 2-3. Back Side View of the
Figure 2-4. EVM on Coldplate.....................................................................................................................................................
Figure 3-1. LMG352XEVM-04X Schematic...............................................................................................................................
Figure 4-1. LMG342X-BB-EVM
Figure 4-2. LMG34XX-BB-EVM Schematic...............................................................................................................................
Figure 5-1. Recommended Footprint for LMG352XEVM-04X ..................................................................................................
Figure 7-1. LMG342X-BB-EVM Motherboard With LMG352XEVM-04X ..................................................................................
Figure 7-2. Connector and LEDs on the
Figure 7-3. Switch-Node Voltage Measurement with High-Bandwidth Probe and Pigtail Ground
Figure 7-4. Continuous Buck Operation at 4 kW.......................................................................................................................
Figure 7-5. Fast Slew Rate at 400V/20A Switching
Figure 8-1. LMG352XEVM-04X Connected to the
SNOU178A - OCTOBER 2020 - REVISED FEBRUARY 2021
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ABSTRACT

Table of Contents

LMG342X-BB-EVM......................................................................................................15
List of Figures
EVM.......................................................................................................................................7
Schematic................................................................................................................................11
LMG342X-BB-EVM....................................................................................................16
Conditions.................................................................................................17
LMG34XX-BB-EVM....................................................................................19
Copyright © 2021 Texas Instruments Incorporated
Table of Contents
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