SNOU176B October   2020  – March 2022

PRODUCTION DATA  

  1.   Trademarks
  2. 1 General TI High Voltage Evaluation User Safety Guidelines
    1. 1.1 Safety and Precautions
  3. 2 Introduction
    1. 2.1 LMG342XEVM-04X Daughter Card
      1. 2.1.1 FAULT and OC
      2. 2.1.2 Power Pins
      3. 2.1.3 Bootstrap Mode
      4. 2.1.4 Heat Sink
    2. 2.2 Mother Boards
      1. 2.2.1 Bias Supply
      2. 2.2.2 PWM Input
      3. 2.2.3 Fault Protection
    3. 2.3 Typical Applications
    4. 2.4 Features
  4. 3  LMG342XEVM-04X Schematic
  5. 4 Mother Board Schematic
  6. 5 Recommended Footprint
  7. 6 Test Equipment
  8. 7 Test Procedure When Paired With LMG342X-BB-EVM
    1. 7.1 Setup
    2. 7.2 Start-Up and Operating Procedure
    3. 7.3 Test Results
    4. 7.4 Shutdown Procedure
    5. 7.5 Additional Operating Notes
  9. 8 Test Procedure When Paired With LMG34XX-BB-EVM
    1. 8.1 Setup
      1. 8.1.1 List of Test Points
      2. 8.1.2 List of Terminals
    2. 8.2 Start-Up and Operating Procedure
    3. 8.3 Shutdown Procedure
    4. 8.4 Additional Operation Notes
  10. 9 Bill of Materials
  11. 10Revision History

2 Introduction

The LMG342XEVM-04X operates as a half-bridge daughter card that can be either part of a larger custom designed system or paired with the mother board. TI provides two mother boards (LMG342X-BB-EVM and LMG34XX-BB-EVM) to interface with LMG342XEVM-04X. LMG342X-BB-EVM can support up to 4-kW, and LMG34XX-BB-EVM can provide up to 1.7-kW. The mother boards are designed to operate LMG342XR0X0 in an open-loop synchronous buck or boost converters. Probe locations are provided to measure the logic and power stage voltages. This board assembly is not suitable for Double Pulse Testing (DPT).

Note: TI provides a custom interposer board that must be used when the LMG342XEVM-04X is paried with the LMG34XX-BB-EVM. The interposer board is not needed with LMG342x-BB-EVM.