SNOU206 October   2024 LMG2640

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5. 1.5 General TI High Voltage Evaluation User Safety Guidelines
      1. 1.5.1 Safety and Precautions
  7. 2Hardware
    1. 2.1 LMG2640EVM-090 Daughter Card
      1. 2.1.1 Test Points
      2. 2.1.2 Integrated Current Sensing
      3. 2.1.3 Enable Pin
      4. 2.1.4 FAULT
      5. 2.1.5 Power Pins
      6. 2.1.6 Heat Sink
    2. 2.2 Motherboard
      1. 2.2.1 Bias Supply
      2. 2.2.2 PWM Input
      3. 2.2.3 Fault Protection
    3. 2.3 Recommended Footprint
    4. 2.4 Test Equipment
    5. 2.5 Test Procedure When Paired With LMG342X-BB-EVM
      1. 2.5.1 Setup
      2. 2.5.2 Start-Up and Operating Procedure
      3. 2.5.3 Test Results
      4. 2.5.4 Shutdown Procedure
      5. 2.5.5 Additional Operating Notes
  8. 3Hardware Design Files
    1. 3.1 LMG2640EVM-090 Schematic
    2. 3.2 Motherboard Schematic
    3. 3.3 PCB Layout
    4. 3.4 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks
  10. 5Related Documentation

2.2.3 Fault Protection

There is an option to disable the PWM input to the daughter card in the event of a fault signal from the LMG2640EVM-090. When the FAULT Protect jumper is placed in the EN mode, PWM is disabled when LMG2640 has an active fault. This disable is not latching, so PWM immediately resumes when the fault clears. If the FAULT Protect mode is not desired, then that mode can be disabled by placing the jumper in the DIS position. The FAULT LED still illuminates when either LMG2640 has an active fault, regardless of the position of FAULT Protect jumper.