SBOU278 December   2021

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 OPT4001YMNEVM Kit Contents
    2. 1.2 Related Documentation from Texas Instruments
  3. 2OPT4001YMNEVM Hardware
    1. 2.1 Theory of Operation for the OPT4001YMNEVM
    2. 2.2 OPT4001YMNEVM Hardware Overview
  4. 3OPT4001YMNEVM Software
    1. 3.1 Hardware Requirements
    2. 3.2 Software Installation
    3. 3.3 Typical OPT4001YMNEVM Hardware Setup
    4. 3.4 Launching the OPT4001EVM Software
    5. 3.5 OPT4001EVM Software Operation
      1. 3.5.1 Getting Started
      2. 3.5.2 Feature Descriptions
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 Flex Coupon Board
      1. 4.1.1 Schematic
      2. 4.1.2 PCB Layout
      3. 4.1.3 Bill of Materials
    2. 4.2 Rigid Coupon Board
      1. 4.2.1 Schematic
      2. 4.2.2 PCB Layout
      3. 4.2.3 Bill of Materials
    3. 4.3 Motherboard
      1. 4.3.1 Schematic
      2. 4.3.2 PCB Layout
      3. 4.3.3 Bill of Materials
  6. 5Troubleshooting
    1. 5.1 Microsoft Windows 7 Manual Driver Installation

1 Overview

The OPT4001 is an ambient light sensor (ALS) with a digital output integrated circuit. It uses a two-wire interface that works with the I2C protocol making it ideal for many applications. The OPT4001YMN is the picostar package version of the OPT4001 device. The picostar package achieves very small size and thickness and orients with the photodiode facing down and senses light through a cutout in the board. This requires the sensor be soldered to a flex PCB in most applications to maximize the field of view of the sensor. The OPT4001YMNEVM is a platform for evaluating the performance of the OPT4001 under various conditions. The OPT4001YMNEVM consists of two PCBs. The first is the OPTMB EVM board, which is a motherboard. This board communicates with a computer through USB connection and provides power and sends and receives appropriate digital signals with the OPT4001 IC. The motherboard will relay USB commands from the EVM GUI software running on the PC to the OPT4001 IC through I2C. The second is the OPT4001YMN coupon board, which contains the OPT4001YMN and its support circuitry. The coupon board consists of a flex PCB soldered to a rigid board. This allows the coupon to be easily plugged and unplugged as the rigid board adds strength to the flex board.