SBOU299 May   2026

 

  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
  6. 2Hardware
    1. 2.1 Current Sensing IC
    2. 2.2 Current Sensing Operation
      1. 2.2.1 Detailed Setup
    3. 2.3 Input Signal Path
    4. 2.4 Digital Circuitry
  7. 3Software
    1. 3.1 Quick Start Setup
    2. 3.2 EVM Operation
      1. 3.2.1 Setup
        1. 3.2.1.1 Driver Installation
        2. 3.2.1.2 Firmware
          1. 3.2.1.2.1 Firmware Debug
        3. 3.2.1.3 GUI Setup and Connection
          1. 3.2.1.3.1 Initial Setup
          2. 3.2.1.3.2 GUI to EVM Connection
      2. 3.2.2 GUI Operation
        1. 3.2.2.1 Homepage Tab
        2. 3.2.2.2 Configuration Tab
        3. 3.2.2.3 Registers Tab
        4. 3.2.2.4 Results Data Tab
      3. 3.2.3 Direct EVM USB Communication
        1. 3.2.3.1 Standard USB Read and Write Operations
          1. 3.2.3.1.1 Set Device Address
          2. 3.2.3.1.2 Read Register
          3. 3.2.3.1.3 Write to Register
        2. 3.2.3.2 Collect Data Through the USB BULK Channel
          1. 3.2.3.2.1 Collect Data
          2. 3.2.3.2.2 USB BULK Receiving Data
          3. 3.2.3.2.3 Stop Data Collection
      4. 3.2.4 PAMB Compatibility
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation

2.4 Digital Circuitry

This section describes the digital circuitry around the device.

J2 and J3 are the main header pins that connect the digital and power pins to the SCB Controller or other EVMs. J3 connects to the EVM/SCB on the right, while J2 connects to more EVMs on the left. R5 and R6 are used as pullup resistors for the main digital IO pins.

SW0 and SW1 set the I2C address of the device. This setup can be useful when using the EVM with a custom controller (other than the SCB Controller), or when connecting multiple EVMs together. The SCB Controller and GUI are set up to use four EVMs at a time.

R8 is used as a pullup resistor for the ALERT pin. LED D2 and current limiting resistor R7 are used to indicate when the ALERT has triggered. U2 is an open-drain buffer that forwards the alert signal to J2 and J3 without allowing the signal to propagate from the ALERT bus to the device. This feature is primarily used when working with multiple EVMs, so that the individual ALERT LEDs can be seen on each EVM while still using the ALERT bus. C4 is a bypass capacitor placed near the buffer to mitigate power supply noise and to help provide current quickly to the device when needed.