SLLU375 September   2024 ISO1228

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Pin Configuration of the ISO1228
    2. 2.2 EVM Board Block Diagram and Image
    3. 2.3 EVM Setup and Operation
      1. 2.3.1 EVM Jumper Settings
  7. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials
  8. 4Additional Information
    1. 4.1 Trademarks

1.2 Kit Contents

This evaluation module contains ISO1228 device with a configuration for evaluating Type 1 or Type 3 digital inputs. To evaluate Type 2 digital inputs, please set RILIM = 1kΩ to support 3.5mA current on each channel and then connect each Type 2 digital input to two channels of ISO1228 such that the two channels consume a combined current of 7mA meeting the current requirement of each Type 2 digital input. Such configuration with ISO1228 allows for evaluation of four Type 2 digital inputs.

The major components of the ISO1228 evaluation module are:

  • ISO1228 isolator
  • On-board digital input connections
  • Multiple on-board test points
  • On-board SPI communication connections

To demonstrate functionality of the ISO1228, TI recommends the following (not included):

  • DC power supply
  • Oscilloscope
  • Signal generator