EMC-Compliant, Automotive Stop Light and Tail Light Reference Design


Design files


This automotive reference design details a solution for a stop light and a tail light. The automotive battery directly supplies the TPS92830-Q1 linear lightemitting-diode (LED) controller used in this design, which allows the designer to use the same LEDs for both functions. This reference design also features robust electromagnetic compatibility (EMC) performance, full protection, and diagnostics.

  • Automotive Battery Supply
  • Meets CISPR 25 Conducted and Radiated Emission Standards and Passes ISO11452-4 BCI Test
  • Stop Light and Tail Light LED Reuse by Using Device Internal PWM Generator
  • LED-String Open-Circuit, Short-to-Ground, and Short-to-Battery Diagnostics With Auto Recovery
  • Fault Bus Configurable as One-Fails–All-Fail or Only-Failed-Channel-Off
  • LED Binning Function by Using Analog Dimming Input Pin

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.

TIDUD54.PDF (1972 K)

Reference design overview and verified performance test data

TIDRW61.PDF (182 K)

Detailed schematic diagram for design layout and components

TIDRW62.PDF (56 K)

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

TIDRW63.PDF (124 K)

Detailed overview of design layout for component placement

TIDRW65.ZIP (545 K)

Files used for 3D models or 2D drawings of IC components


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

TIDRW64.PDF (1020 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Automotive LED drivers

TPS92830-Q1Automotive 3-channel high-side high-power constant-current Linear LED controller

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide EMC-Compliant, Automotive Stop Light and Tail Light Reference Design May 09, 2017

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