SLUUCU8 july   2023

 

  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
  7. 2Hardware
    1. 2.1 Setup
    2. 2.2 Physical Access
      1. 2.2.1 Test Equipment and Setup
        1. 2.2.1.1 Power Supplies
        2. 2.2.1.2 Meters
        3. 2.2.1.3 Oscilloscope
        4. 2.2.1.4 Loads
    3. 2.3 General Configurations
  8. 3Implementation Results
    1. 3.1 Test Setup and Procedures
      1. 3.1.1 Power-Up and Power-Down With EN Control
      2. 3.1.2 Input Overvoltage Test
      3. 3.1.3 Output Hot-Short Test
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1.     Trademarks

2.2 Physical Access

Table 3-2 lists the LM74912Q1EVM evaluation board input and output connector functionality. Table 3-3 and Table 3-4 describe the test point availability and the jumper functionality.

Table 2-2 Input and Output Connector Functionality
ConnectorLabelDescription
J1VINPower input connector to the positive rail of the input power supply.
J3PGNDGround connection for the power supply.
J2VOUTPower output connector to the positive side of the load.
J9VOUT_LCPower output connector after the output CLC Filter.
J4PGNDGround connection for the load.
Table 2-3 Test Points Description
Test PointsLabelDescription
TP1VINInput power supply to the EVM.
TP2VOUTOutput from the EVM.
TP3, TP4, TP14PGNDEVM ground.
TP5ENEnable input.
TP6VSInput power supply to the IC.
TP7DGATEDiode controller gate drive output.
TP8HGATEGATE driver output for the HSFET.
TP9FLT/Active low open drain fault output.
TP10SLEEP/Active low SLEEP mode input.
TP13CCathode of the ideal diode.
Table 2-4 Jumper and LED Descriptions
Jumper Connection Description
J5 1-2 EN connected to C. EN pulled High
2-3 EN connected to GND. EN pulled Low
J6 1-2 SLEEP/ connected to C. SLEEP mode disabled
2-3 SLEEP/ connected to GND. SLEEP mode active
J7 1-2 Output high D5 LED indication
J8 1-2 SLEEP_OV connected to VOUT. Overvoltage clamp functionality in SLEEP mode
2-3 SLEEP_OV connected to C. Overvoltage cut-off functionality in SLEEP mode
J13 1-2 FLT/ external voltage pullup
3-4

FLT/ pullup to C