70V, 60mA White LED Driver with Dimming Control and Automatic Thermal Scale-Back Reference Design


Design files


Compact, High Efficienct (>90%) White LED Driver.  Drives a 440 lumen White LED at up to 70V at up to 60mA from a 6V to 18V source.  Includes voltage controlled dimming with automatic thermal to current scale-back for preventing high LED temperatures.  Designed for genral purpose LED lighting in 6V to 18V DC powered systems.

  • 6V to 18V Input Voltage Range
  • 1.5mA to 60mA Dimmable Current
  • Automatically Reduces Current by up to 50% in high temperature conditions
  • High (>90%) Efficiency
  • Voltage Controlled Dimming for Potentiometer or DAC Interface
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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.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDCB97.ZIP (324 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide 70-V WLED Drive With Dimming Control and Thermal Scaleback Design Guide Oct. 14, 2015

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