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Zone & body domain controller

Zone control module

Products and reference designs
Block diagram

Zone control module

Block diagram

Overview

Our integrated circuits and reference designs help you create compact and robust zone control modules that can drive multiple loads, reliably transmit and receive data, and reduce the power consumption within the vehicle. Explore our broad portfolio of DC/DC converters, LDOs, power management ICs, CAN, LIN and Ethernet transceivers, high side switches, motor drivers, smart diodes, and more to optimize your next zone control module.

Design requirements

  • Fuse replacement with high side switches to optimize vehicle cabling
  • Effective communication to other vehicle modules over multiple communication standards (CAN, LIN, Ethernet)
  • Careful balance of thermal performance and PCB size
  • Optimized EMC performance to meet emissions and immunity standards
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Block diagram

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Zone control module

Temperature sensor Temperature sensor Light sensor Light sensor Current feedback Current feedback Analog inputs Analog inputs Edge nodes (ECU) Edge nodes (ECU) Side mirror Side mirror 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 Motor Motor Powered at all time Powered at all time Load Load 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 Edge nodes Edge nodes Power supply Power supply Reverse battery protection Reverse battery protection Switching regulator Switching 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 MCU MCU MCU MCU Linear regulator Linear regulator Audio mic Audio mic VESS VESS Speakers Speakers Power switched on/off Power switched on/off Load Load Motor Motor Load Load Load Load Power switched on/off Power switched on/off Power distribution box (PDB) Power distribution box (PDB) Zone control module Zone control module Off-board loads/ECUs Off-board loads/ECUs Off board Off board Loads Loads Central vehicle compute Central vehicle compute Central vehicle compute Central vehicle compute Edge nodes Edge nodes Edge nodes Edge nodes Edge nodes Edge nodes Edge nodes (ECU) Edge nodes (ECU) Smart fuse Smart fuse HS switches HS switches HS switch controller HS switch controller Current sense Current sense Ethernet Ethernet Ethernet PHYs Ethernet PHYs Ethernet ESD Ethernet ESD Ethernet switch Ethernet switch PCIe PCIe PCIe redriver/retimer PCIe redriver/retimer PCIe mux PCIe mux Analog and digital inputs Analog and digital inputs Op amp Op amp MSDI MSDI MUX MUX Audio ADC Audio ADC Diagnostic inputs Diagnostic inputs Reference Reference Comparator Comparator Temperature sense Temperature sense Logic Logic Load drivers Load drivers HS switches HS switches HS switch controller HS switch controller Motor drivers Motor drivers Current sense Current sense Audio amplifiers Audio amplifiers LED drivers LED drivers LS switches LS switches Reverse current protection Reverse current protection I/O expansion I/O expansion Shift register Shift register I/O expander I/O expander MUX MUX Logic Logic

Power supply

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The power supply susbsytem supplies power to the MCU, communication interface (depends on the interface type), and various circuits on the PCB. This subsystem is typically realized using a combination of DC/DC converters, Low Dropout (LDO) regulators and could inlcude diagnostic features such as watchdog and supply voltage monitoring. In addition, the power supply subsystem could include tracking regulators that provide power to off-board sensors.

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Power management (39)
Linear & low-dropout (LDO) regulators
  • TPS7B4260-Q1—Automotive 300mA 40V voltage-tracking low-dropout regulator with feedback and 6mV tracking tolerance
    Data sheet: PDF | HTML
  • TPS7C84-Q1—Automotive 150mA 40V low-dropout linear regulator with power good and wide output voltage range
    Data sheet: PDF | HTML
  • TPS7B4255-Q1—Automotive, 70-mA 40-V voltage-tracking low-dropout (LDO) regulator with 5-mV tracking tolerance
    Data sheet: PDF | HTML
  • TPS748A-Q1—Automotive, 1.5-A, 0.8-V low-noise adjustable LDO voltage regulator with power good and enable
    Data sheet: PDF | HTML
  • TLV713P-Q1—Automotive 150-mA, low-dropout voltage regulator with enable
    Data sheet: PDF | HTML
  • TPS746-Q1—Automotive 1-A, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good
    Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)
  • LMR51606-Q1—Automotive 4.5V-to-65V 0.6A synchronous buck converter with 25µA quiescent current in SOT-23 package
    Data sheet: PDF | HTML
  • LMR60430-Q1—Automotive, 36V, 3A synchronous buck converter with low Iq and high efficiency with minimized COUT
    Data sheet: PDF | HTML
  • LMR38010-Q1—Automotive SIMPLE SWITCHER® 4.2-V to 80-V, 1-A synchronous buck converter
    Data sheet: PDF | HTML
  • LM70860-Q1—Automotive, high-density, 4.5V to 80V input, 6A low-EMI synchronous DC/DC step-down converter
    Data sheet: PDF | HTML
  • LM70840-Q1—Automotive, high-density, 4.5V to 80V input, 4A low-EMI synchronous DC/DC step-down converter
    Data sheet: PDF | HTML
  • LMR60440-Q1—36V, 4A synchronous buck converter with low Iq and high-efficiency
    Data sheet: PDF | HTML
Multi-channel ICs (PMICs)
  • TPS653860-Q1—Automotive 2.3-V to 36-V, 2.8-A power management IC (PMIC) for safety-relevant applications
    Data sheet: PDF | HTML
  • LP87523-Q1—Automotive, 10A, 2-phase + 1-phase + 1-phase, three-output buck converter with integrated switches
    Data sheet: PDF | HTML
  • LP8732-Q1—Automotive dual 2-A buck converters and dual linear regulators
    Data sheet: PDF | HTML
  • LP87565-Q1—Automotive, multiphase dual 8A buck converter with integrated switches
    Data sheet: PDF | HTML
  • TPS6594-Q1—Automotive 2.8-V to 5.5-V PMIC with five buck regulators and four low-dropout regulators
    Data sheet: PDF | HTML
  • LP8764-Q1—4 5-A/20-A multiphase buck converters PMIC for automotive SoCs
    Data sheet: PDF | HTML
Ideal diode/ORing controllers
  • LM76202-Q1—4.2-V to 60-V, 2.2A 300uA IQ automotive ideal diode with Integrated FET
    Data sheet: PDF | HTML
  • LM74900-Q1—Automotive ideal diode with circuit breaker, under- and overvoltage protection with fault output
    Data sheet: PDF | HTML
  • LM74700D-Q1—Automotive, 3.2-V to 70-V, 80-µA reverse battery protection ideal diode controller
    Data sheet: PDF | HTML
  • LM74500-Q1—Reverse polarity protection controller
    Data sheet: PDF | HTML
  • LM74912-Q1—Automotive ideal diode with integrated over-voltage and short circuit protection w/ fault output
    Data sheet: PDF | HTML
  • LM74704-Q1—Automotive ideal diode controller with FET good open-drain output
    Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)
  • LM5148-Q1—Automotive, 80V synchronous buck DC/DC controller with ultra-low IQ
    Data sheet: PDF | HTML
  • LM5143A-Q1—Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller
    Data sheet: PDF | HTML
  • LM5137F-Q1—Automotive, 80V, 100% duty cycle, dual-channel, functional safety synchronous buck controller
    Data sheet: PDF | HTML
  • LM25148-Q1—Automotive 42-V synchronous buck DC/DC controller with ultra-low IQ
    Data sheet: PDF | HTML
  • LM25149-Q1—42-V automotive synchronous buck DC/DC controller with ultra-low IQ and integrated active EMI filter
    Data sheet: PDF | HTML
  • LM5155-Q1—2.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller, AEC-Q100 qualified
    Data sheet: PDF | HTML
Supervisor & reset ICs
  • TPS3808E-Q1—Automotive, 600nA ultra-low quiescent current supervisor with programmable delay and manual reset
    Data sheet: PDF | HTML
  • TPS3762-Q1—Automotive 65-V window supervisor with ultra-low quiescent current and built-in self-test
    Data sheet: PDF | HTML
  • TPS388R0-Q1—Automotive multichannel overvoltage and undervoltage supervisor with I²C
    Data sheet: PDF | HTML
  • TPS3899-Q1—Automotive nanopower supervisor with programmable sense and reset delay
    Data sheet: PDF | HTML
  • TPS36-Q1—Automotive nano-quiescent-current precision supervisor with window watchdog timer
    Data sheet: PDF | HTML
  • TPS35-Q1—Automotive nano-quiescent-current precision supervisor with timeout watchdog timer
    Data sheet: PDF | HTML
Shunt voltage references
  • ATL431LI-Q1—Automotive, high-bandwidth, low-IQ programmable shunt regulator (pinout: KRA)
    Data sheet: PDF | HTML
  • LM4050-N—50-ppm/°C precision micropower shunt voltage reference
    Data sheet: PDF | HTML
  • LM4041-N—Fixed & adjustable, 45-µA, precision micropower shunt voltage reference
    Data sheet: PDF | HTML
  • TIDA-00745—15-W System-Level Power Reference Design for Automotive Body Control Module
    Design guide: PDF Schematic: PDF Schematic: PDF
  • TIDA-020079—Zone reference design
    Design guide: PDF

Technical documentation

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Type Title Date
White paper How a Zone Architecture Paves the Way to a Fully Software-Defined Vehicle (Rev. C) PDF | HTML 17 Oct 2024
White paper How a Zone Architecture Paves the Way to a Fully Software-Defined Vehicle (Rev. C) PDF | HTML 17 Oct 2024
Application note Automotive Smart Fuse (Rev. A) PDF | HTML 04 Apr 2023
White paper 區域架構如何為完整軟體定義車輛奠定基礎 (Rev. C) PDF | HTML 01 Nov 2024
White paper 영역 아키텍처가 어떻게 완전한 소프트웨어 정의 차량을 위한 기반을 다지고 있는가 (Rev. C) PDF | HTML 01 Nov 2024

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