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TIDA-01081
LED-Lighting Control Reference Design for Machine Vision
TIDA-01081
Overview
This LED lighting control reference design demonstrates a unique approach to drive and control a string of multiple high-power light-emitting diodes (LEDs). This reference design is targeted for industrial machine vision systems and is also suitable for other industrial or automotive lighting applications. The design allows users to program LED current and timing to enable the safe overdriving of LEDs for increased brightness. The design can operate autonomously but can also be triggered or generate a trigger through an isolated interface. Internal circuit blocks support a wide input voltage range, a programmable input current, and input power control as well as protect against reverse polarity, overvoltage and overtemperature.
Features
- LED string voltage up to 24V
- Programmability of multiple parameters:
- LED current: 200 mA to 2.4 A
- LED mode: Continuous or pulsed 200 ns to 4.9 s
- LED pulse repetition: 0.2 Hz to 10 kHz
- Trigger delay time: 10 μs for trigger input
- Multi-pulse time, and current bracketing to support AEB and HDR imaging
- Cascaded dual power stages:
- Pre-Boost: Wide 8V to 36V, 15-W system input with adaptive inductor current limit
- Buck: Fast inductor current ramping
- Isolated trigger and UART interface:
- Isolated 5-V, 50-mA output
- Sinking NPN– and TTL trigger IN and OUT
- Comprehensive system supervision and protection:
- Onboard temperature sensors and voltage supervision
- Ultra-fast output overvoltage protection
- eFuse: Reverse protection, adaptive overcurrent limit, and input power limit
- EEPROM for up to 256 bits of user data
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUDB6.PDF (5052 K)
Reference design overview and verified performance test data
TIDRUT1.PDF (2519 K)
Detailed schematic diagram for design layout and components
TIDRUT2.PDF (77 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRUT3.PDF (583 K)
Detailed overview of design layout for component placement
TIDRUT5.ZIP (3673 K)
Files used for 3D models or 2D drawings of IC components
TIDCEB1.ZIP (1282 K)
Design file that contains information on physical board layer of design PCB
TIDRUT4.PDF (3989 K)
PCB layer plot file used for generating PCB design layout
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Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | LED Lighting Control Reference Design for Machine Vision | Dec. 15, 2017 | |
| Application brief | Advanced High-Side Switch With Dynamic Current Limit for IO-Link Master | Jan. 07, 2019 | ||
| Technical article | A modular view of an LED lighting control design | PDF | HTML | Jul. 10, 2018 | |
| Technical article | Light that freezes motion – insight into a LED lighting control design for machine | PDF | HTML | May 31, 2018 |
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