Linear LED Driver Reference Design for Automotive Lighting Applications


Design files


TIDA-00679 an automotive LED tail-light application (tail/stop, turn and reverse). It uses TPS92630 linear LED driver which is directly powered through a smart-reverse battery diode off the automotive battery. The design enables potential cost savings and efficiency through lower power dissipation and improved system thermals. This reference design also includes CISPR25 testing, pulse tests by ISO 7637-2 and EMI/EMC radiated and conducted emissions testing.

For a similar design with TPS92630-Q1 driven by a buck converter, see TIDA-00677.

For a similar design driven by a boost converter, see TIDA-00678.

  • Efficiency-optimized design
  • Load-dump tolerant
  • Operation through cold crank
  • Smart-reverse battery protection
  • CISPR-25 tested EMI/EMC
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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

TIDRM00.PDF (123 K)

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

TIDRM01.PDF (268 K)

Detailed overview of design layout for component placement

TIDRM03A.ZIP (1072 K)

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

TIDCC83.ZIP (556 K)

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

TIDRM02.PDF (1897 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Automotive LED drivers

TPS92630-Q1Automotive Three-channel Linear LED driver with Analog and PWM dimming

Data sheet: PDF | HTML

LMV7239-Q1Automotive-grade, micropower, 75-ns, single rail-to-rail comparator

Data sheet: PDF
Ideal diode/ORing controllers

LM74610-Q10.48-V to 42-V, zero IQ automotive ideal diode controller

Data sheet: PDF | HTML
N-channel MOSFETs

CSD85301Q220-V, N channel NexFET™ power MOSFET, dual SON 2 mm x 2 mm, 27 mOhm, gate ESD protection

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC1G07-Q1Automotive single 1.65-V to 5.5-V buffer with open-drain outputs

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide TPS92630 Linear LED Driver for Automotive Lighting Applications Design Guide (Rev. A) Sep. 14, 2016

Related design resources

Reference designs

TIDA-00677 CISPR25 Automotive Tail Light Reference Design for Step-Down + Linear LED Driver Based Systems TIDA-00678 CISPR25 Tested Automotive Tail Light Reference Design for Step-Up + Linear LED Driver Based Systems

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