SBOU298 March   2024 INA4230 , INA4235

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  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 Quick Start Setup
    2. 2.2 EVM Operation
      1. 2.2.1 Current Sensing Operation
        1. 2.2.1.1 Detailed Setup
    3. 2.3 Circuitry
      1. 2.3.1 Current Sensing IC
      2. 2.3.2 Input Signal Path
      3. 2.3.3 Digital Circuitry
    4. 2.4 PAMB Compatibility
  8. 3Software
    1. 3.1 Setup
      1. 3.1.1 Driver Installation
      2. 3.1.2 Firmware
        1. 3.1.2.1 Firmware Debug
      3. 3.1.3 GUI Setup and Connection
        1. 3.1.3.1 Initial Setup
        2. 3.1.3.2 GUI to EVM Connection
    2. 3.2 GUI Operation
      1. 3.2.1 Homepage Tab
      2. 3.2.2 Configuration Tab
      3. 3.2.3 Registers Tab
      4. 3.2.4 Results Data Tab
    3. 3.3 Direct EVM USB Communication
      1. 3.3.1 Standard USB Read and Write Operations
      2. 3.3.2 Collect Data Through the USB BULK Channel
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Related Documentation

1.4 Device Information

The INA4230 and INA4235 devices are digital power monitors with integrated 16-bit delta-sigma ADCs specifically designed for current-sensing applications. The devices can measure a selectable full-scale differential input of ±81.92 mV or ±20.48 mV across the shunt with common-mode voltage support from –0.3V to +48V. The INA4230 and INA4235 include built-in digital accumulation registers that calculate average power and energy. Both devices also have built-in diagnostics to indicate system health accessible through a digital output pin, ALERT. The devices operate from a single supply of 2.7V to 5.5V, drawing < 700µA current during operation and < 6µA current during shutdown. The output can be interfaced with a multitude of microcontrollers (MCUs) with a standard I2C interface.

Table 1-2 Device Summary
PRODUCTDIGITAL PROTOCOLADC RESOLUTIONMAX GAIN ERRORMAX OFFSET VOLTAGE
INA4230I2C16-bit0.75%±75 µV
INA4235I2C16-bit0.1%±10 µV