User’s Guide
LMG342XEVM-04X User Guide
ABSTRACT
The LMG342XEVM-04X features two LMG342XR0X0 600-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 parasitic
inductance to reduce voltage overshoots and improving performance. The LMG342XEVM-04X is configured for
a socket style external connection for easy interface with external power stages to run the LMG342XR0X0 in
various applications. Refer to the LMG342XR0X0 data sheet before using this EVM.
Table of Contents
1 General TI High Voltage Evaluation User Safety Guidelines ............................................................................................. 3
1.1 Safety and Precautions...................................................................................................................................................... 4
2 Introduction.............................................................................................................................................................................5
2.1 LMG342XEVM-04X ...........................................................................................................................................................5
2.2 LMG34XX-BB-EVM............................................................................................................................................................8
2.3 Typical Applications............................................................................................................................................................8
2.4 Features............................................................................................................................................................................. 8
3 LMG342XEVM-04X Schematic............................................................................................................................................... 9
4 LMG342X-BB-EVM Schematic............................................................................................................................................. 10
5 Recommended Footprint......................................................................................................................................................11
6 Test Setup..............................................................................................................................................................................12
6.1 Test Equipment................................................................................................................................................................ 12
6.2 Recommended Test Setup With LMG34XX-BB-EVM...................................................................................................... 12
6.3 List of Test Points............................................................................................................................................................. 14
6.4 List of Terminals............................................................................................................................................................... 14
7 Test Procedure When Paired With LMG342X-BB-EVM......................................................................................................15
7.1 Setup................................................................................................................................................................................15
7.2 Start-Up and Operating Procedure.................................................................................................................................. 16
7.3 Shutdown Procedure........................................................................................................................................................16
7.4 Additional Operating Notes.............................................................................................................................................. 16
8 Test Procedure When Paired With LMG34XX-BB-EVM..................................................................................................... 17
8.1 Setup................................................................................................................................................................................17
8.2 Start-Up and Operating Procedure.................................................................................................................................. 17
8.3 Shutdown Procedure........................................................................................................................................................17
8.4 Additional Operation Notes.............................................................................................................................................. 17
9 Bill of Materials..................................................................................................................................................................... 18
List of Figures
Figure 2-1. LMG342XEVM-04X Block Diagram.......................................................................................................................... 6
Figure 2-2. Front Side View of the EVM...................................................................................................................................... 7
Figure 2-3. Back Side View of the EVM.......................................................................................................................................7
Figure 3-1. LMG342XEVM-04X Schematic................................................................................................................................. 9
Figure 4-1. LMG342X-BB-EVM Schematic............................................................................................................................... 10
Figure 5-1. Recommended Footprint for LMG342XEVM-04X .................................................................................................. 11
Figure 6-1. LMG342XEVM-04X Connected to the LMG34XX-BB-EVM....................................................................................12
Figure 6-2. Recommended Connection Points..........................................................................................................................13
Figure 7-1. LMG342X-BB-EVM Motherboard With LMG342XEVM-04X .................................................................................. 15
Figure 7-2. Connector and LEDs on the LMG342X-BB-EVM....................................................................................................16
www.ti.com Table of Contents
SNOU176 – OCTOBER 2020
Submit Document Feedback
LMG342XEVM-04X User Guide 1
Copyright © 2020 Texas Instruments Incorporated
