SLVUD86 November   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Connection Descriptions
      1. 2.1.1 Test Points
      2. 2.1.2 Jumper Configurations
  8. 3Application-Based Modifications
    1. 3.1 External Modifications
      1. 3.1.1 Versions A and B
      2. 3.1.2 Adjustable Current Limit
  9. 4Hardware Design Files
    1. 4.1 TPS1HC120Q1EVM Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks

3.1.2 Adjustable Current Limit

The current limit regulates the output current to a set value. The EVM can be designed to hold different current limit values through an external resistor on the ILIM pin. There are 11 settings that can be set based on RLIM. 1% tolerance resistors must be used in this application. Either replace R4 with an appropriate resistor or use the potentiometer to modify the resistance on the pin. Please remove the other resistor that is not being used.

Any resistor settings that are not listed in the following table can be interpreted as one of the adjacent levels, which is not a recommended configuration.

Table 3-1 Current Limit Setting Through External Resistor
Resistor Value (kΩ)ILIM Threshold (A)
6.752.0
7.51.8
8.41.6
9.61.4
11.31.2
13.51.0
16.90.8
22.90.6
33.750.4
67.50.2
Open, short, or out of range (< 7.5kΩ or > 75kΩ)2