TIDA-00846

Automotive high-side dimming rear light reference design

TIDA-00846

Design files

Overview

This reference design is for automotive high-side dimming rear light, which uses BCM to supply the rear light. In the 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 LEDs in constant current.

Features
  • High-side dimming
  • Wide-input voltage range: 12-V typical, 9-V to 6-V continuous
  • Programmable current limit high-side driver
  • LED-open circuit,  LED-short circuit, LED-driver output short to battery, device thermal shutdown protection
  • Thermal foldback function for LED driver
  • One fail-all-fail function

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.

TIDUB07.PDF (1096 K)

Reference design overview and verified performance test data

TIDRJF6.PDF (21 K)

Detailed schematic diagram for design layout and components

TIDRJE7.PDF (476 K)

Detailed schematic diagram for design layout and components

TIDRJE8.PDF (115 K)

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

TIDRJE9.PDF (182 K)

Detailed overview of design layout for component placement

TIDRJF0.PDF (509 K)

Detailed overview of design layout for component placement

TIDRJF2.ZIP (644 K)

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

TIDCBK8.ZIP (653 K)

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

TIDRJF1.PDF (1285 K)

PCB layer plot file used for generating PCB design layout

Products

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 document-pdfAcrobat PDF open-in-new HTML
Automotive LED drivers

TPS92638-Q1Automotive 8-channel Linear LED driver with PWM dimming

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-side switches

TPS1H100-Q140-V, 100-mΩ, 1-ch automotive smart high-side switch with adjustable current limit

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

Technical documentation

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Type Title Date
Design guide Automotive High Side Dimming Rear Light Design Guide Nov. 09, 2015

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