IR LED Illumination and ICR Control Reference Design for IP Network Cameras With Day/Night Vision
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Key Document


This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an alternative for driving multi-string LED arrays with a single string LED driver while maintaining uniform illumination under low-light conditions. The OPT3001 Ambient Light Sensor (ALS) with precise visible light measuring and good IR rejection, is an ideal preferred replacement for photodiodes, photoresistors or other ambient light sensors.

  • Incorporates current ballasting to equalize IR LED currents between strings in a multi-string LED array while using a single-string LED controller
  • Offers firmware-adjustable ambient light level thresholds and ambient light measurement modes
  • Offers PWM-adjustable illumination brightness levels
  • Offers ICR open or close control for day and night vision by using a simple motor driver
  • Incorporates the ability to operate from either a 12-V or 5-V power supply
  • Designed with headers compatible with BoosterPack™ plug-in module ecosystem with software designed to work with MSP430FR2311 MCU LaunchPad™

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD25402Q3A  -20-V, P channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 8.9 mOhm  MOSFETs  Sample & Buy Not Available
DRV8837C  12-V, 1-A H-bridge motor driver  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
OPT3001  Digital ambient light sensor (ALS) with high-precision human-eye response  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TLV700  200-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS54201  4.5V-to-28V Input Voltage, Synchronous Buck LED driver  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TPS54202  4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS61169  TPS61169 38-V high-current Boost WLED driver  LED drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD25402Q3A VSONP (DNH)| 8 Download
DRV8837C Download
OPT3001 Download Download
TLV700 Download Download
Download -
Download Download
TPS54201 Download Download
TPS54202 Download Download
TPS61169 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 6896 04 May 2018
Design files (12)
Title Type Size (KB) Date
ZIP 683 04 May 2018
ZIP 518 04 May 2018
ZIP 1587 04 May 2018
ZIP 885 04 May 2018
PDF 1217 04 May 2018
PDF 671 04 May 2018
PDF 182 04 May 2018
PDF 125 04 May 2018
PDF 46 04 May 2018
PDF 40 04 May 2018
PDF 372 04 May 2018
PDF 280 04 May 2018
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
MSP430FR2311 LaunchPad™ development kit  MSP-EXP430FR2311  Development kit 

Design tools & simulation (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Simulation tool 

Software development (1)

Models (1)

Title Category Type Size (KB) Date Views
TIDA-01586 Simulation Files TINA-TI Reference Design ZIP 785 KB 30 May 2018

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