SNOU179A May   2021  – September 2021 LM74501-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Setup
    1. 2.1 I/O Connector Description
    2. 2.2 Board Setup
    3. 2.3 Schematic
  4. 3Operation
    1. 3.1 LM74501-Q1EVM Performance Capture
      1. 3.1.1 LM74501-Q1EVM Startup
      2. 3.1.2 Startup Reverse Polarity (–12 V)
  5. 4EVM Board Assembly Drawings and Layout Guidelines
    1. 4.1 PCB Drawings
    2. 4.2 Bill of Materials
  6. 5Revision History

3.1.2 Startup Reverse Polarity (–12 V)

  • A –12-V source is connected to the VIN input of the LM74501-Q1EVM.
  • Figure 3-2 shows that the output voltage remains at a constant 0 V in this situation.
  • This test simulates the event of connecting a 12-V battery in the reverse direction; therefore, protecting the load from negative input voltages.
GUID-20210412-CA0I-1LTN-T19B-PBFFRLCZDMQC-low.png Figure 3-2 Startup Reverse Polarity (–12 V)