STEVAL-ISQ013V1: Low-Side Current Sense

Summary

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.

Specifications

Manufacturer STMicroelectronics
Category Sensor Solutions
Sub-Category Current Sensing
Eval Board Part Number 497-11285-ND
Eval Board Supplier STMicroelectronics
Eval Board Board not Stocked
Voltage In 2.7 ~ 5.5 V
Sensing Method Shunt, Low Side
Current Sensing Max 1 A
Features ESD Protection
Quiescent Current [Maximum] 1.25 mA
Quiescent Current [Typical] 800 µA
Component Count + Extras 6 + 1
Design Author STMicroelectronics
Main I.C. Base Part TS507
Date Created By Author 2010-10
Date Added To Library 2012-04

Eval Board

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Support Documents & Media

STEVAL-ISQ013V1 - User Guide STEVAL-ISQ013V1 - Bill of Materials TS507 - Datasheet

Media

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