SLVUCV2 September   2024 TPS4HC120-Q1

 

  1.   1
  2.   Description
  3.   3
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Connection Descriptions
      1. 2.1.1 Connections and Test Points
      2. 2.1.2 Jumper Configurations
  9. 3Implementation Results
    1. 3.1 Variable Resistor for CS and CL
      1. 3.1.1 Current Sense Resistor
      2. 3.1.2 Adjustable Current Limit
  10. 4Hardware Design Files
    1. 4.1 TPS4HC120-Q1 Schematic
    2. 4.2 TPS4HC120-Q1 EVM Assembly Drawings and Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

3.1.1 Current Sense Resistor

The current sense function is internally implemented by a current mirror. This is reflected as an external resistor between the SNS pin and GND. The TPS4HC120 evaluation module resistor is located on pad R9. This can be adjusted externally but do take into consideration temperature and supply voltage.