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

(ACTIVE) TIDA-00678

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Key Document

Description

The TIDA-00678 TI design showcases a solution for an automotive LED tail light application (Tail/Stop, Turn, Reverse) by using the TPS92630-Q1 linear LED driver powered by an upstream boost converter (TPS40210-Q1) which is directly supplied through a smart reverse battery diode off the automotive battery voltage. The design guide includes EMI/EMC radiation and pulse tests conducted by CISPR25 and ISO 7637-2 and highlights potential cost savings and efficiency (power dissipation, system thermals). For a similar design with the TPS92630-Q1 driven by a Buck Converter please see TIDA-00677.

For a similar design with the TPS92630-Q1 driven directly from car battery, please see TIDA-00679.

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

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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 (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18531Q5A  60V N-Channel NexFET Power MOSFETs, CSD18531Q5A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD85301Q2  CSD85301Q2 Dual N-Channel NexFET™ Power MOSFET   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 Not Available
TLC555-Q1  Automotive LinCMOS TIMER  Clock & timing  Sample & Buy View Design Kits & Evaluation Modules
TPS40210-Q1  Automotive 4.5V to 52V Wide Input Range Current Mode Boost Controller  Step-up (boost)  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)
CSD18531Q5A VSONP (DQJ)| 8 Download
CSD85301Q2 WSON (DQK)| 6 Download Download
LM74610-Q1 Download Download
LMV7239-Q1 Download
Download
SN74LVC1G07-Q1 Download Download
Download
TLC555-Q1 Download Download
TPS40210-Q1 Download -
TPS92630-Q1 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 10894 14 Sep 2016 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1156 31 May 2016 0
ZIP 520 19 May 2016 0
PDF 2075 19 May 2016 0
PDF 302 19 May 2016 0
PDF 139 19 May 2016 0
PDF 297 19 May 2016 0
Related Tools & Software

Reference Designs  ( 2 )


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