TIDA-01586
IR LED Illumination and ICR Control Reference Design for IP Network Cameras With Day/Night Vision
TIDA-01586
Overview
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.
Features
- 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™
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUE56.PDF (6896 K)
Reference design overview and verified performance test data
TIDRW99.PDF (280 K)
Detailed schematic diagram for design layout and components
TIDRWA0.PDF (372 K)
Detailed schematic diagram for design layout and components
TIDRWA1.PDF (40 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRWA2.PDF (46 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRWA3.PDF (125 K)
Detailed overview of design layout for component placement
TIDRWA4.PDF (182 K)
Detailed overview of design layout for component placement
TIDRWA7.ZIP (885 K)
Files used for 3D models or 2D drawings of IC components
TIDRWA8.ZIP (1587 K)
Files used for 3D models or 2D drawings of IC components
TIDCEN8.ZIP (518 K)
Design file that contains information on physical board layer of design PCB
TIDCEN9.ZIP (683 K)
Design file that contains information on physical board layer of design PCB
TIDRWA5.PDF (671 K)
PCB layer plot file used for generating PCB design layout
TIDRWA6.PDF (1217 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Ambient light sensors
OPT3001 — Digital ambient light sensor (ALS) with high-precision human-eye response
Data sheetBacklight LED drivers
TPS61169 — TPS61169 38-V high-current Boost WLED driver
Data sheetBrushed DC (BDC) motor drivers
DRV8837C — 12-V, 1-A H-bridge motor driver
Data sheetBuck converters (integrated switch)
TPS54202 — 4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter
Data sheetIllumination LED drivers
TPS54201 — 4.5V-to-28V Input Voltage, Synchronous Buck LED driver
Data sheetLinear & low-dropout (LDO) regulators
TLV700 — 200-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable
Data sheetP-channel MOSFETs
CSD25402Q3A — -20-V, P channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 8.9 mOhm
Data sheetStart development
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | IR LED Illumination and ICR Control Reference Design for IP Network Cameras | May 04, 2018 |
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