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Automotive lighting

Headlight

Products and reference designs
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Headlight

Block diagram

Overview

Our integrated circuits and reference designs for automotive headlight applications help you create compact, efficient and reliable adaptive front-lighting systems (AFS), adaptive beam (ADB) and high-resolution headlight systems while meeting stringent automotive EMC requirements.

Design requirements

    LED headlight circuit designs require:

  • High-accuracy LED current control.
  • Comprehensive diagnostics for fault identification.
  • Minimized conducted and radiated emissions.
  • Flexibility to create scalable headlight systems.
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Block diagram

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Headlight - DRL/position LED driving module

Headlight - HB/LB LED driving module

Headlight - adaptive LED board

Headlight - adaptive LED driving module

Headlight - basic LED driving module

Headlight - high resolution DLP module

Headlight - single feature / bulb replacement

Technical documentation

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Type Title Date
Technical article Designing a headlight ECU with a high-power-density constant-on-time DC/DC buck LE PDF | HTML 28 Jul 2023
Technical article How semiconductor technologies are changing automotive lighting roadmaps PDF | HTML 25 Jul 2023
White paper 자동차 후미등의 트렌드와 토폴로지 (Rev. A) 16 Oct 2019
White paper 汽車尾燈系統的趨勢與拓撲 (Rev. A) 14 Oct 2019
White paper Evolution vs. revolution: the building blocks of automotive body electronics 11 Apr 2018
Technical article What headlight resolution is high enough for symbol projection? PDF | HTML 07 Jul 2023
Analog Design Journal Does adaptive pre‐boost control in automotive‐lighting apps boost efficiency? 04 Oct 2018
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 04 Aug 2016
Analog Design Journal Designing the front-end DC/DC conversion stage to withstand automotive transient 03 Feb 2017
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 02 Oct 2017
White paper Trends and topologies for automotive rear lighting systems (Rev. A) 01 Oct 2019
White paper Trends and topologies for automotive rear lighting systems (Rev. A) 01 Oct 2019

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