SNOU173A October   2020  – December 2020 LM7310

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  3. 2Description
  4. 3Schematic
  5. 4General Configurations
    1. 4.1 Physical Access
    2. 4.2 Test Equipment and Set up
      1. 4.2.1 POWER SUPPLIES
      2. 4.2.2 METERS
      3. 4.2.3 OSCILLOSCOPE
      4. 4.2.4 LOADS
  6. 5Test Setup and Procedures
    1. 5.1 Startup Test
    2. 5.2 ORing of Two Power Supplies Test
    3. 5.3 Reverse Current Blocking Test
    4. 5.4 Output Short-Circuit Test
    5. 5.5 Input Reverse Polarity Test
  7. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  8. 7Bill Of Materials (BoM)
  9. 8Revision History

5.3 Reverse Current Blocking Test

Use the following instructions to perform reverse current blocking test:

  1. Set the input supply voltage VIN to 12 V and current limit of 10 A. Turn ON the power supply.
  2. Use a second power supply to apply 20V at the OUT with respect to GND.
  3. Observe the PG signal and input current using an oscilloscope. The device turns OFF immediately allowing zero reverse current and deasserts the PG signal.

Figure 5-4 shows test waveform of reverse current blocking on theLM73100EVM Ideal Diode Evaluation Board.

GUID-20201209-CA0I-MNVN-ZMPW-6PJ2KV1PJSRX-low.pngFigure 5-4 Reverse Current Blocking Response of LM73100 Device (VIN = 12 V, VOUT = 20 V)