SLUUCE4 June   2021

 

  1.   Trademarks
  2. 1Introduction
  3. 2Description
    1. 2.1 Features
    2. 2.2 I/O Description
  4. 3Electrical Specifications
  5. 4Test Summary
    1. 4.1 Definitions
    2. 4.2 Equipment
      1. 4.2.1 Power Supply
      2. 4.2.2 Function Generator
      3. 4.2.3 DMM
      4. 4.2.4 Oscilloscope
    3. 4.3 Equipment Setup
      1. 4.3.1 DC Power Supply Settings
      2. 4.3.2 Digital Multi-Meter Settings
      3. 4.3.3 Two-Channel Function Generator Settings
      4. 4.3.4 Oscilloscope Settings
      5. 4.3.5 Bench Setup Diagram
  6. 5Power Up and Power Down Procedure
    1. 5.1 Power Up
    2. 5.2 Power Down
  7. 6Typical Performance Waveforms (CL = 1800 pF)
    1. 6.1 Propagation Delays
  8. 7Schematic
  9. 8Layout Diagrams
  10. 9List of Materials

5.1 Power Up

  1. Before beginning the power up test procedure, verify the connections with Figure 4-1.
  2. Enable supply #1, if the current on DMM1 is more than 0.25 mA and less than 0.8 mA, everything is set correctly.
  3. Enable function generator outputs channel-A and channel-B.
  4. The following conditions should be present:
    1. Stable pulse output on channel-1 and channel-2 in the oscilloscope, refer to
    2. Frequency measurement should be 100 kHz, ±5 kHz or equal to the programmed function generator frequency
    3. DMM #1 should display around 4.6 mA, ±2 mA with the default load capacitance of 1.0 nF. For more information about operating current, see the UCC27624 DatasheetUCC27624 30-V 5-A dual channel low-side driver Data Sheet.
  5. Connect ENA_IN and ENB_IN test points to GND test point with jumpers. The pulse outputs on channel-1 and channel-2 will cease operation and the voltage level should be near ground.
GUID-20210520-CA0I-HK13-BXF6-TGJ2CDXFNJR1-low.png Figure 5-1 Example Input and Output Waveforms