Domain gateway

Products and reference designs

Domain gateway

Block diagram

Overview

Our integrated circuits and reference designs for automotive gateway help you create customizable, multi-rail power solutions and CAN, LIN and Ethernet networks for enabling large amounts of traffic to be transferred across a wide variety of physical networks. 

Design requirements

  • Effective communication between domains.
  • Optimized power sequencing and efficiency for processors.
  • Reduced electromagnetic interference (EMI) to optimize system performance.

Block diagram

Find products and reference designs for your system.

Domain gateway

EEPROM EEPROM Ethernet network Ethernet network Ethernet Ethernet Ethernet PHYs Ethernet PHYs Power Supply Power Supply Voltage regulator Voltage regulator Watchdog Watchdog Reverse battery protection Reverse battery protection PCIe network PCIe network PCIe PCIe PCIe buffer PCIe buffer Car Battery Car Battery Processor Processor Processor Processor Loads Loads Fuse Fuse Relays Relays Fuse Fuse Loads Loads Loads Loads Output functions Output functions Loads Loads Loads Loads Fuse Fuse Fuse Fuse CAN network CAN network LIN network LIN network CAN CAN CAN ESD CAN ESD CAN CAN Data distribution Data distribution Power distribution Power distribution Power distribution box Power distribution box LIN LIN LIN LIN LIN ESD LIN ESD

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 low dropout (LDO) regulator and may inlcude diagnostic features such as watchdog and supply voltage monitoring. In addition, the power supply subsystem may include tracking regulators that provide power to off-board sensors.

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Power management (34)
AC/DC & DC/DC converters (integrated FET)
  • LM65680-Q1Automotive 65V, 8A synchronous buck converter optimized for low-EMI
    Data sheet: PDF | HTML
  • LM65645-Q1Automotive, 3V to 65V, 4.5A synchronous step-down converter optimized for power density and low EMI
    Data sheet: PDF | HTML
  • LM706A0-Q1Automotive, High-density, 4.5V to 65V input, 10A low-EMI synchronous DC/DC step-down converter
    Data sheet: PDF | HTML
  • TPS552892-Q1Automotive 36-V, 8-A fully integrated buck-boost converter
    Data sheet: PDF | HTML
  • LMR34206-Q14.2-V to 42-V, 0.6-A ultra-small synchronous step-down converter
    Data sheet: PDF | HTML
  • LMR51603-Q14.5V-to-65V 0.3A synchronous buck converter with 25µA quiescent current
    Data sheet: PDF | HTML
Supervisor & reset ICs
  • TPS3762-Q1Automotive 65-V window supervisor with ultra-low quiescent current and built-in self-test
    Data sheet: PDF | HTML
  • TPS389006-Q1Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor
    Data sheet: PDF | HTML
  • TPS3760-Q1Automotive 65-V overvoltage or undervoltage supervisor with sense, ultra-low IQ and delay
    Data sheet: PDF | HTML
  • TPS3890-Q1Automotive low-quiescent current 1% accuracy supervisor with programmable delay
    Data sheet: PDF | HTML
  • TPS3436-Q1Automotive, nano-quiescent-current precision window watchdog timer
    Data sheet: PDF | HTML
  • TPS3703-Q1Automotive high-accuracy window supervisor with reset time delay
    Data sheet: PDF | HTML
Ideal diode/ORing controllers
  • LM74910-Q1Automotive ideal diode with circuit breaker, 200-kHz ACS and under- and overvoltage protection
    Data sheet: PDF | HTML
  • LM7481-Q1Automotive ideal diode controller with active rectification driving B2B NFETs
    Data sheet: PDF | HTML
  • LM74700D-Q1Automotive, 3.2-V to 70-V, 80-µA reverse battery protection ideal diode controller
    Data sheet: PDF | HTML
  • LM74701-Q1Automotive 3.2-V to 65-V reverse battery protection ideal diode controller with integrated VDS clamp
    Data sheet: PDF | HTML
  • LM5050-1-Q1Automotive, 5-V to 75-V 400-uA IQ ORing FET controller
    Data sheet: PDF | HTML
  • LM74610-Q10.48-V to 42-V, zero IQ automotive ideal diode controller
    Data sheet: PDF | HTML
Multi-channel ICs (PMICs)
  • LP8732-Q1Automotive dual 2-A buck converters and dual linear regulators
    Data sheet: PDF | HTML
  • TPS65224-Q15.5V PMIC with four buck converters and three LDOs for ADAS processors up to ASIL-B
    Data sheet: PDF | HTML
  • TPS6594-Q1Automotive 2.8-V to 5.5-V PMIC with five buck regulators and four low-dropout regulators
    Data sheet: PDF | HTML
  • LP8764-Q14 5-A/20-A multiphase buck converters PMIC for automotive SoCs
    Data sheet: PDF | HTML
  • TPS650362-Q1Automotive 35V PMIC with three buck converters and one LDO regulator for camera modules up to ASIL-B
    Data sheet: PDF | HTML
  • LP87702-Q1Dual buck converter and 5-V boost with diagnostic functions
    Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators
  • TPS746-Q1Automotive 1-A, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good
    Data sheet: PDF | HTML
  • TPS7A16A-Q1Automotive, 100-mA, off-battery (60-V), ultra-low-IQ, low-dropout voltage regulator with power good
    Data sheet: PDF | HTML
  • TPS7B86-Q1Automotive 500-mA, 40-V, ultra-low-IQ, low-dropout (LDO) linear regulator with power good
    Data sheet: PDF | HTML
  • TPS7B69-Q1Automotive 150-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator
    Data sheet: PDF | HTML
  • TPS784-Q1Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable
    Data sheet: PDF | HTML
  • TPS709-Q1Automotive 150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection
    Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)
  • LM51521-Q1Automotive 2.2-MHz wide VIN low IQ synchronous boost controller with disabled bypass mode
    Data sheet: PDF | HTML
  • LM5152-Q1Automotive 2.2 MHz wide VIN low IQ synchronous boost controller
    Data sheet: PDF | HTML
  • TPS40210-Q14.5-V to 52-V wide input range current mode boost controller with 700-mV reference voltage
    Data sheet: PDF | HTML
eFuses & hot swap controllers
  • LM5060-Q1Automotive 5.5-V to 65-V high side protection controller
    Data sheet: PDF | HTML
  • TIDA-0074515-W System-Level Power Reference Design for Automotive Body Control Module
    Design guide: PDF Schematic: PDF Schematic: PDF
  • TIDA-01412Power Supply Reference Design for Automotive Microcontroller in Gateway and Body Control Module
    Design guide: PDF Schematic: PDF
  • TIDA-01425Automotive Stand-Alone Gateway Reference Design with Ethernet and CAN
    Design guide: PDF Schematic: PDF

Technical documentation

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Type Title Date
White paper Simplify CAN bus implementations with chokeless transceivers 31 Mar 2016
White paper Enabling Differentiation through MCU Integration on Jacinto™ 7 Processors 30 Nov 2020
White paper Enabling Differentiation through MCU Integration on Jacinto™ 7 Processors 30 Nov 2020
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 28 Feb 2017
Technical article The value of wettable flank-plated QFN packaging for automotive applications PDF | HTML 19 Sep 2023
Technical article Processing the advantages of zone architecture in automotive PDF | HTML 19 Sep 2023
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 19 Sep 2016
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 19 Sep 2016
White paper 為下一代車輛開發的汽車閘道 (Rev. B) 16 Nov 2020
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
White paper 차세대 자동차를 위한 진화하는 차량용 게이트웨이 (Rev. B) 12 Nov 2020
White paper Evolving automotive gateways for next-generation vehicles (Rev. B) 11 Nov 2020
White paper Evolving automotive gateways for next-generation vehicles (Rev. B) 11 Nov 2020
White paper Connecting Zonal Automotive Architectures with PCIe PDF | HTML 11 May 2022
White paper Evolution vs. revolution: the building blocks of automotive body electronics 11 Apr 2018
White paper Jacinto™ 7 프로세서의 MCU 통합으로 차별화 지원 10 Dec 2020
White paper 100BASE-T1 Ethernet: the evolution of automotive networking 09 May 2018
White paper Differenzierungsmöglichkeit durch MCU-Integration Prozessoren der Reihe Jacinto™ 07 Dec 2020
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 04 Aug 2016
Technical article How a DC/DC converter package and pinout design can enhance automotive EMI perform PDF | HTML 03 Oct 2023
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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