Body control module (BCM)

Products and reference designs

Body control module (BCM)

Block diagram

Overview

Our integrated circuits and reference designs for automotive body control modules (BCMs) provide you with a total BCM solution including LDOs, CAN and LIN in-vehicle networking, limp home functionality and high-side switches.

Design requirements:

Modern BCM designs require:

  • Effective communication between domains.
  • Open-load and short-circuit detection.
  • Replacement of relays and fuses to reduce size while improving power efficiency.
  • Improved thermal efficiency with optimized PCB layout.
  • Optimization for battery transients and prevention of EMI.

Block diagram

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Technical documentation

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Type Title Date
Application note High-Side Switches Paralleling Channels 30 Apr 2018
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 28 Feb 2017
Application note Protecting 12-V MSDI Devices in a 24-V System 22 Sep 2020
Technical articles Eight questions about monitoring and protection in hybrid and electric vehicles 22 May 2019
Application note Adjustable Current Limit of Smart Power Switches (Rev. B) 21 Jan 2019
Application note Open Load Detection and Limp Home Function in BCM 19 Feb 2020
Technical articles A better automotive display from pixel to picture with local dimming 16 Oct 2020
White paper Evolution vs. revolution: the building blocks of automotive body electronics 11 Apr 2018
Application note Using the Half-Bridge DRV89xx-Q1 as High-Side or Low-Side Switch PDF | HTML 10 May 2022
Application note 12-V Battery Monitoring in an Automotive Module (Rev. A) PDF | HTML 10 May 2022
White paper 100BASE-T1 Ethernet: the evolution of automotive networking 09 May 2018
Technical articles How USB will enable the future of automotive infotainment 08 Oct 2015
Application note AEC-Q100-012 Short-Circuit Reliability Test Results for Smart Power Switches (Rev. A) 06 May 2019
Technical articles Difficult to see. Always in motion is the future 04 Jan 2016
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 車體控制模組的系統電源架構 02 Apr 2019

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