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

2.1 Setup

The LM74912Q1EVM is configured by default for evaluating 12-V automotive reverse battery protection with switched output to disconnect power path or clamp the output. For evaluation of input voltages greater than 35V, the input TVS (D1) has to be removed and an appropriate TVS has to be installed to clamp the input transients to less than 70V.
Table 2-1 LM74912Q1EVM Evaluation Board Options and Setting
Part NumberEVM FunctionVin RangeVin UVLOVin OVP

ENABLE

(EN)

Overcurrent

Protection

Features
LM74912Q1EVMIdeal diode with

overcurrent

, under and overvoltage protection with fault output		3 V to 65 V5.8 V36.96 VActive high10 A

(Adjustable using RSET, RISCP and FET Rds(on))

Adjustable overcurrent protection and cconfigurable SLEEP mode