SNVU797D April   2022  – June 2025 LM5177

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
  6. 2Hardware
    1. 2.1 Connector, Test Point, and Selection Switch Descriptions
      1. 2.1.1 Connector Descriptions
      2. 2.1.2 Jumper Descriptions
      3. 2.1.3 Test Point Descriptions
      4. 2.1.4 Selection Switch Descriptions
        1. 2.1.4.1 S1 and S2 CFG setting
      5. 2.1.5 Current Monitor and Current Limiter Configuration
        1. 2.1.5.1 Current Monitor and Current Limiter Configuration
        2. 2.1.5.2 Current Limiter Configuration
    2. 2.2 Test Setup and Procedure
      1. 2.2.1 Test Setup
      2. 2.2.2 Test Procedure
      3. 2.2.3 Precautions
  7. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Thermal Performance
      2. 3.1.2 Efficiency
      3. 3.1.3 Steady State Waveforms
      4. 3.1.4 Step Load Response
  8. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 Optional Components
    3. 4.3 Board Layout
    4. 4.4 Bill of Materials
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Revision History

2.1.5.2 Current Limiter Configuration

For the current limiting, the settings are shown below. Refer to Figure 2-3.

  • CFG setting with current limiter enabled
  • IMONOUT jumper J12 removed
  • SYNC connected to VCC for forward current limit

  • IMONOUT with resistor and capacitor in series to GND - see Figure 2-2

Note: EMV shows only placeholder for components. Names and symbols do not always reflect the component type and value which are placed there. For example, CR18: 2.2nF and R17: 700Ω
LM5177EVM-HP IMONOUT Components For Current LimitFigure 2-2 IMONOUT Components For Current Limit
LM5177EVM-HP LM5177 EVM Current Limit SetupFigure 2-3 LM5177 EVM Current Limit Setup