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Body control module (BCM)

Products and reference designs
Block diagram

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

Find products and reference designs for your system.

Body control module (BCM)

Temperature sensor Temperature sensor Light sensor Light sensor Current feedback Current feedback Analog inputs Analog inputs Fuse Fuse Loads Loads Fuse Fuse Relays Relays Fuse Fuse Ignition relay Ignition relay Exterior lighting Exterior lighting Interior lighting Interior lighting Door lock Door lock Window/Sunroof Window/Sunroof Heater/Defroster Heater/Defroster Wiper/Washer Wiper/Washer Fuel pump Fuel pump BTSI BTSI Horn/Alarm Horn/Alarm Loads Loads Loads Loads Output functions Output functions Loads Loads Fuse Fuse Radio anti-theft Radio anti-theft Door Door Lighting Lighting Ignition key Ignition key AC/Heater AC/Heater Parking break Parking break Wiper/ Washer Wiper/ Washer Sensors Sensors Discrete inputs Discrete inputs CAN bus CAN bus LIN bus LIN bus Off board sensor Offboardsensor Discrete implementation or system basis chip (SBC) Discrete implementation or system basis chip (SBC) Power supply Power supply Reverse battery protection Reverse battery protection Voltage regulator Voltage regulator Watchdog Watchdog Tracking LDO Tracking LDO Supervisor Supervisor CAN CAN CAN CAN CAN ESD CAN ESD LIN LIN LIN LIN LIN ESD LIN ESD Digital inputs Digital inputs MSDI/MUX MSDI/MUX MCU MCU MCU MCU Tell tale indicators Tell taleindicators LED drivers LEDdrivers Analog inputs Analog inputs Op amp Op amp MSDI/MUX MSDI/MUX Diagnostic inputs Diagnostic inputs Reference Reference Comparator Comparator Current sense Current sense Temperature sense Temperature sense Logic Logic Load drivers Load drivers HS switches HS switches LS switches LS switches Relay drivers Relaydrivers Motor drivers Motordrivers Current sense Current sense

LIN

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LIN Communication

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Interface (12)
System basis chips (SBCs)
  • TCAN2845-Q1—Automotive CAN FD System Basis Chip (SBC) with partial networking
    Data sheet: PDF | HTML
  • TCAN2410-Q1—Automotive CAN FD system basis chip (SBC) with buck regulator
    Data sheet: PDF | HTML
  • TCAN2450-Q1—Automotive CAN FD signal improvement capable (SIC) system basis chip (SBC) with buck regulator
    Data sheet: PDF | HTML
  • TCAN2411-Q1—Automotive CAN FD system basis chip (SBC) with partial networking and buck regulator
    Data sheet: PDF | HTML
  • TLIN1028-Q1—Automotive local interconnect network (LIN) transceiver with integrated voltage regulator
    Data sheet: PDF | HTML
  • TCAN4550-Q1—Automotive system basis chip (SBC) with integrated CAN FD controller & transceiver
    Data sheet: PDF | HTML
LIN transceivers
  • TLIN1021A-Q1—Automotive Fault-Protected LIN Transceiver with Inhibit and Wake
    Data sheet: PDF | HTML
  • TLIN1024A-Q1—Automotive, quad local interconnect network (LIN) transceiver with dominant state timeout
    Data sheet: PDF | HTML
  • TLIN1029A-Q1—TLIN1029A-Q1 Local Interconnect Network (LIN) Transceiver with Dominant State Timeout
    Data sheet: PDF | HTML
  • TLIN2029A-Q1—Fault protected local interconnect network (LIN) transceiver with dominant state timeout
    Data sheet: PDF | HTML
  • TLIN1022A-Q1—Automotive dual local interconnect network (LIN) transceiver with dominant state timeout
    Data sheet: PDF | HTML
  • TLIN1027-Q1—Automotive local interconnect network (LIN) transceiver for K-line applications
    Data sheet: PDF | HTML

    Technical documentation

    View all 22
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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 There are more ways than you think to reduce conducted EMI 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 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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