Linear LED Driver Reference Design for Automotive Lighting Applications
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Key Document


The TIDA-00679 TI design showcases a solution for an automotive LED tail light application (Tail/Stop, Turn, Reverse). It uses the 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. The 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 the TPS92630-Q1 driven by a Buck Converter please see TIDA-00677.

For a similar design driven by Boost Converter, please see the 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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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD85301Q2  20V, N ch NexFET MOSFET™, dual SON2x2, 27mOhm  MOSFETs  Sample & Buy Not Available
LM74610-Q1  Zero iq reverse polarity protection smart diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
LMV7239-Q1  75 nsec, Ultra Low Pwr, Low Voltage, Rail-to-Rail Input Comparator w/ Open-Drain/Push-Pull Output  Amplifiers  Sample & Buy Not Available
SN74LVC1G07-Q1  Automotive catalog single buffer/driver with open-drain output  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TLC555-Q1  Automotive LinCMOS TIMER  Clocks & timing  Sample & Buy View Design Kits & Evaluation Modules
TPS92630-Q1  Automotive Three-Channel Linear LED Driver with Analog and PWM Dimming  LED drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD85301Q2 WSON (DQK)| 6 Download Download
LM74610-Q1 Download Download
LMV7239-Q1 Download
SN74LVC1G07-Q1 Download Download
TLC555-Q1 Download Download
TPS92630-Q1 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 6258 14 Sep 2016
Design files (6)
Title Type Size (KB) Date
ZIP 1072 31 May 2016
ZIP 556 19 May 2016
PDF 1897 19 May 2016
PDF 268 19 May 2016
PDF 123 19 May 2016
PDF 817 19 May 2016
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Reference Designs  ( 2 )

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