SBOA539 January   2023 INA219 , INA232

 

  1.   Abstract
  2.   Trademarks
  3. 1Overview
    1. 1.1 INA232 and INA219
  4. 2Migrating From INA219 to INA232
    1. 2.1 Package Selection and Pinout
    2. 2.2 Device Address
    3. 2.3 Shunt Voltage Range
    4. 2.4 Power Supply and IO Voltage Levels
    5. 2.5 Digital Interface and Data Format
    6. 2.6 Register Set
    7. 2.7 Accuracy
    8. 2.8 Unique Features
  5. 3Implementation
    1. 3.1 Identify Suitable Migration Projects
    2. 3.2 Bench Setup and Hardware
    3. 3.3 Result Registers and Calculation
    4. 3.4 Software Implementation

1 Abstract

This user’s guide compares the features of the INA219 and INA232 digital power monitors, and outlines key differences that need to be considered when migrating from INA219 to INA232. A design example is used to highlight both commonalities and differences between the two. The example demonstrates that there are a range of applications that can be served by both devices, either to solve a supply chain constraint issue or simply to upgrade to the latest product offerings from TI. For applications that require features unique to one device, substituting one device with the other device is not always possible.