LED-Lighting Control Reference Design for Machine Vision

(ACTIVE) TIDA-01081

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Key Document

Description

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

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (23)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD15380F3  20-V N-Channel FemtoFET MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD18543Q3A  60V N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
DAC082S085  8-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output  Digital-to-analog converters (DACs)  Sample & Buy Not Available
DAC7311  12-bit, single-channel, ultra-low power DAC in 6-pin SC70 package for battery powered applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
INA169  60V, High-Side, High-Speed, Current Output Current Sense Amplifier  Current sense amplifiers  Sample & Buy Not Available
ISOW7842  High-Efficiency, Low-Emissions, Reinforced Digital Isolator With Integrated Power  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM5165  3V-65V, 150mA Synchronous Buck Converter With Ultra-Low IQ  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LP5907  250mA ultra-low-noise low-Iq low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5172  25MHz MCU with Two 16-bit High Res Timers, 32KB flash, 2KB RAM, 10-bit ADC, 16-channel Comparator  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
REF3025  2.5V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference  Voltage references  Sample & Buy Not Available
SN74LVC1G02  Single 2-Input Positive-NOR Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G14  Single Schmitt-Trigger Inverter  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G17  Single Schmitt-Trigger Buffer  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G175  Single D-Type Flip-Flop with Asynchronous Clear  Flip-flop/latch/register  Sample & Buy Not Available
TLV3201  40ns, micro-Power, Rail-to-Rail Input, Single-Channel Comparator with Push-Pull Outputs  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TMP116  ±0.2°C Accurate Digital Temperature Sensor With NV Memory  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-Channel ESD in 0402 Package With 10pF Capacitance and 6V Breakdown  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS22810  18V, 3A, 79mΩ Load Switch with Adjustable Rise Time, Adj. Quick Output Discharge, & Thermal Shutdown  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS2660  60V 2A Industrial eFuse With Integrated Reverse-Input Polarity Protection  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7A4101  50V Input, 50mA, Single Output Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS92515HV  2A LED Driver with Integrated NFET, High-Side Current Sense, and Shunt PWM Dimming Capable  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TPS92561  Phase Dimmable, Single Stage Boost Controller for LED Lighting  LED drivers  Sample & Buy Not Available
UCC27511  4A/8A Single Channel High-speed Low-side Gate Driver  Gate drivers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18543Q3A VSONP (DNH)| 8 Download Download
DAC082S085 Download Download
Download Download
DAC7311 Download Download
INA169 Download Download
ISOW7842 Download Download
LM5165 Download Download
LP5907 Download Download
Download -
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MSP430F5172 Download -
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REF3025 Download Download
SN74LVC1G02 Download Download
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Download
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Download -
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SN74LVC1G14 Download -
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Download
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Download -
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SN74LVC1G17 Download -
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SN74LVC1G175 Download Download
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Download -
TLV3201 Download
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TMP116 Download Download
TPD1E10B06 Download Download
TPS22810 Download -
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TPS2660 Download Download
Download Download
TPS7A4101 Download Download
TPS92515HV Download
TPS92561 Download
UCC27511 Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 5052 15 Dec 2017 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1282 15 Dec 2017 0
ZIP 3673 15 Dec 2017 0
PDF 3989 15 Dec 2017 0
PDF 583 15 Dec 2017 0
PDF 77 15 Dec 2017 0
PDF 2519 15 Dec 2017 0
Related Tools & Software

Development Tools (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Circuit Design & Simulation 

Software (1)



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