SLUUBG8C November   2018  – October 2021 UCC20520 , UCC21320-Q1 , UCC21520 , UCC21520-Q1 , UCC21521 , UCC21530

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
  4. 3 Features
    1. 3.1 I/O Description
    2. 3.2 Jumpers (Shunt) Setting
  5. 4 Electrical Specifications
  6. 5 Test Summary
    1. 5.1 Definitions
    2. 5.2 Equipment
      1. 5.2.1 Power Supplies
      2. 5.2.2 Function Generators
    3. 5.3 Equipment Setup
      1. 5.3.1 DC Power Supply Settings
      2. 5.3.2 Digital Multi-Meter Settings
      3. 5.3.3 Two-Channel Function Generator Settings
      4. 5.3.4 Oscilloscope Setting
      5. 5.3.5 Jumper (Shunt) Settings
      6. 5.3.6 Bench Setup Diagram
  7. 6 Power-Up and Power-Down Procedure
    1. 6.1 Power Up
    2. 6.2 Power Down
  8. 7 Test Waveforms (CL=0pF) With Different DT Configurations
    1. 7.1 DT Connected to VCCI (J-DT Option B in Table 1-1 )
    2. 7.2 DT Pin Floating or Left Open (J-DT Option A in Table 1-1 )
    3. 7.3 DT Pin Connected to RDT (J-DT Option C in Table 1-1 )
  9. 8 Schematic
  10. 9 Layout Diagrams
  11. 10List of Materials
  12. 11Revision History

5.3.6 Bench Setup Diagram

The current bench setup diagram includes the function generator and oscilloscope connections.

Use the following connection procedure and also use Figure 5-2 as a reference:

  • Make sure all the output of the function generator, voltage source are disabled before connection;
  • Function generator channel-A channel applied on INA (TP3) ←→ GND (TP14) as seen in Figure 5-2;
  • Function generator channel-B channel applied on INB (TP5) ←→ GND (TP6) as seen in Figure 5-2. For the UCC20520EVM, INB, J-INB and TP15 are not installed because the UCC20520 is a single PWM input, dual-channel output Iso-Driver;
  • Power supply #1: positive node applied on VCCI (TP1), and negative node applied on GND (TP2);
  • Power supply #2: positive node connected to input of DMM #1 and DMM #1 output connected to VDDA (TP17), negative node connected directly to VSSA (TP19);
  • Power supply #3: positive node connected to input of DMM #2 and DMM #2 output connected to VDDB (TP20), negative node connected directly to VSSB (TP22);
  • Oscilloscope channel-A probes TP14, smaller measurement loop is preferred;
  • Oscilloscope channel-B probes TP16, smaller measurement loop is preferred;
Figure 5-2 Bench Setup Diagram and Configuration