TIDA-01081

LED-Lighting Control Reference Design for Machine Vision

TIDA-01081

Design files

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

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

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM51653V-65V, 150mA Synchronous Buck Converter With Ultra-Low IQ

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Comparators

TLV32015.5-V, high-speed, single push-pull comparator

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Current sense amplifiers analog output

INA1692.7 to 60V, 440kHz Variable gain current sense amplifier

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D-type flip-flops

SN74LVC1G175Single D-Type Flip-Flop with Asynchronous Clear

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Digital temperature sensors

TMP1160.2C digital temperature sensor, 64-bit non-volatile memory

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ESD & surge protection ICs

TPD1E10B0612-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

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Illumination LED drivers

TPS92515HV65-V 2-A LED driver with Integrated NFET, high-side current Sense, and Shunt PWM dimming Capable

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Illumination LED drivers

TPS92561Phase dimmable, Single Stage boost controller for LED Lighting

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Inverting buffers & drivers

SN74LVC1G14Single 1.65-V to 5.5-V inverter with Schmitt-Trigger inputs

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Linear & low-dropout (LDO) regulators

LP5907250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable

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Linear & low-dropout (LDO) regulators

TPS7A410150-mA, 50-V, low-IQ, adjustable low-dropout voltage regulator with enable

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Load switches

TPS2281018-V, 3-A, 79-mΩ load switch with adj. rise time and adj. output discharge

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Low-side drivers

UCC275114-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay

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Low-side drivers

UCC27511A4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, 5-V IN handling

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MSP430 microcontrollers

MSP430F517225 MHz MCU with 32KB Flash, 2KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

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N-channel MOSFETs

CSD15380F320-V, N channel NexFET™ power MOSFET, single LGA 0.6 mm x 0.7 mm, 1460 mOhm, gate ESD protection

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N-channel MOSFETs

CSD18543Q3A60-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 9.9 mOhm

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NOR gates

SN74LVC1G02Single 2-input, 1.65-V to 5.5-V NOR gate

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Noninverting buffers & drivers

SN74LVC1G17Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs

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Precision DACs (<=10MSPS)

DAC082S0858-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output

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Precision DACs (<=10MSPS)

DAC731112-bit, single-channel, ultra-low power DAC in 6-pin SC70 package for battery powered applications

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Series voltage references

REF30252.5-V, 50-ppm/°C, 50-µA in 3-pin SOT-23 package series (bandgap) voltage reference

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Signal isolators with integrated power

ISOW7842Quad-channel, 2/2, reinforced digital isolator with integrated power

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eFuses & hot swap controllers

TPS26604.2-V to 60-V, 150mΩ, 0.1-2.23A eFuse with integrated input reverse polarity protection

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Start development

Software

Support software

TIDA-01081 Software – TIDCEL5.ZIP (454 K)

Technical documentation

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Type Title Date
* Design guide LED Lighting Control Reference Design for Machine Vision Dec. 15, 2017
Application note 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 Jul. 10, 2018
Technical article Light that freezes motion – insight into a LED lighting control design for machine vision May 31, 2018

Related design resources

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