STEVAL-ISQ013V1: Low-Side Current Sense

This application note describes the STEVAL-ISQ013V1, a demonstration board specifically designed for low-side current sensing with the TS507 operational amplifier.

Power management mechanisms are found in most electronic systems. Current sensing is useful for protecting your applications. The low-side current sensing method consists in placing a sense resistor between the load and the circuit’s ground. The resulting voltage drop is amplified using the TS507.

This document describes how to accurately measure the current in your applications. It provides:

• the advantages of the low-side current sense method.
  
• the schematics and layout of the demonstration board.
  
• a description of the TS507's main features.
  
• a method for selecting the most appropriate components for your application.
  
• theoretical and practical results.