TIDT293 October   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Design Variants
  5. 2Design Overview
    1. 2.1 Board Contents
    2. 2.2 Connector Description
    3. 2.3 User Interface
      1. 2.3.1 Switches and Push-buttons
      2. 2.3.2 Jumpers
      3. 2.3.3 Potentiometers
    4. 2.4 Functional Block Diagram
    5. 2.5 Functional Block Descriptions
  6. 3Features and Performance Curves
    1. 3.1  Test Setup
    2. 3.2  Pulse
    3. 3.3  Levels and Free Run
    4. 3.4  INP
    5. 3.5  Dual-Output Power Supply
    6. 3.6  Overtemperature Protection
    7. 3.7  Slew Rate Adjust
    8. 3.8  Settling Time Adjust
    9. 3.9  Low- and High-Level Adjust
    10. 3.10 Pulse-Width Adjust
    11. 3.11 Period and Delay Adjust
    12. 3.12 Frequency Response
  7. 4Operation
    1. 4.1 Initial Setup – Jumper Selection and Potentiometer Settings
    2. 4.2 Procedure
      1. 4.2.1 Initial Power Up
      2. 4.2.2 Connecting the Circuit Under Test
  8. 5Limitations and Capabilities
    1. 5.1 Wiring Inductance
    2. 5.2 Minimum Voltage
    3. 5.3 Battery Life
  9. 6Typical Failure Mechanism
    1. 6.1 Fast Thermal Failure
    2. 6.2 Slow Thermal Failure

1 Design Variants

The PMP20967 load step board can be changed into different models varying in output rated voltages and current. Table 1-1 shows the variants as well as the different components necessary for the specific model.

Table 1-1 PMP20967 Variant Specifications and Components
IOUTVOUTR21R13U5Q2

5 A

100 V

0.500 Ω32.4 kΩTL431PSMN035-150B

25 A

100 V

0.100 Ω16.2 kΩTL431PSMN035-150B

100 A

100 V

0.025 Ω8.06 kΩTL431PSMN035-150B

125 A

50 V

0.010 Ω4.02 kΩTLV431PSMN008-75B

12.5 A

50 V

0.100 Ω16.2 kΩTLV431PSMN008-75B