Body control module (BCM)

Products and reference designs

Body control module (BCM)

Block diagram


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.

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Block diagram

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Technical documentation

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Type Title Date
Technical article Top trends driving the automotive industry PDF | HTML 30 Aug 2023
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 brief Protecting 12-V MSDI Devices in a 24-V System 22 Sep 2020
Application note Adjustable Current Limit of Smart Power Switches (Rev. B) 21 Jan 2019
Technical article The value of wettable flank-plated QFN packaging for automotive applications PDF | HTML 19 Sep 2023
Application note Open Load Detection and Limp Home Function in BCM 19 Feb 2020
Technical article Bluetooth® low energy makes automotive systems more automatic PDF | HTML 15 Aug 2023
Technical article Automotive gateways: the bridge between communication domains PDF | HTML 14 Aug 2023
Technical article How to overcome size, EMI and thermal challenges of automotive LED lighting PDF | HTML 14 Aug 2023
Technical article There are more ways than you think to reduce conducted EMI PDF | HTML 14 Aug 2023
Technical article Solving voltage transient challenges with an integrated buck-boost converter PDF | HTML 13 Jul 2023
White paper Evolution vs. revolution: the building blocks of automotive body electronics 11 Apr 2018
Application brief 12-V Battery Monitoring in an Automotive Module (Rev. A) PDF | HTML 10 May 2022
Application brief Using the Half-Bridge DRV89xx-Q1 as High-Side or Low-Side Switch PDF | HTML 10 May 2022
White paper 100BASE-T1 Ethernet: the evolution of automotive networking 09 May 2018
Application note AEC-Q100-012 Short-Circuit Reliability Test Results for Smart Power Switches (Rev. A) 06 May 2019
Technical article The multi-switch detection interface: integrated features for smaller, more effici PDF | HTML 06 Jul 2023
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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