Automotive high-side dimming rear light reference design
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The TI design is for automotive high side dimming rear light, which uses BCM to supply the rear light. In the TI design the high side driver TPS1H100-Q1 is used to output PWM supply with different duty cycle. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive the LEDs in constant current.

  • High side dimming
  • Wide input voltage range: 12V Typical, 9-16V continuous
  • Programable current limit high side driver
  • LED Open circuit,  LED short circuit, LED driver output short to battery, device thermal shut down protection
  • Thermal Foldback function for LED driver
  • One fail all fail function

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Schematic/Block Diagram

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS1H100-Q1  40-V, 100-mΩ, 1-ch automotive smart high-side switch with adjustable current limit  Power switches  Not Available View Design Kits & Evaluation Modules
TPS92630-Q1  Automotive Three-channel Linear LED driver with Analog and PWM dimming  LED drivers  Not Available View Design Kits & Evaluation Modules
TPS92638-Q1  Automotive 8-channel Linear LED driver with PWM dimming  LED drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS1H100-Q1 Download Download
TPS92630-Q1 Download Download
TPS92638-Q1 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1096 09 Nov 2015
Design files (8)
Title Type Size (KB) Date
PDF 21 11 Dec 2015
ZIP 653 10 Dec 2015
ZIP 644 10 Dec 2015
PDF 1285 10 Dec 2015
PDF 509 10 Dec 2015
PDF 182 10 Dec 2015
PDF 115 10 Dec 2015
PDF 476 10 Dec 2015

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