TJA1086G FlexRay Active Star Coupler | NXP Semiconductors

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FlexRay Active Star Coupler – 2 Branch

TJA1086G
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The TJA1086G is a FlexRay™ active star coupler that connects two branches of a FlexRay network. The TJA1086G is compliant with the FlexRay electrical physical layer specification V3.0.1/ISO17458-4.

  • Several TJA1085G and TJA1086G devices can be connected via their TRXD0/1 interfaces to increase the number of branches in the network
  • A dedicated Communication Controller interface allows for integration into an ECU
  • Supports low-power management by offering bus wake-up capability along with battery supply and voltage regulator control
  • Meets industry standards for EMC/ESD performance and provides enhanced bus error detection, low current consumption and unmatched asymmetric delay performance

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TJA1086G

TJA1086G Block Diagram

Active star coupler that connects two branches of a FlexRay network

Active star coupler that connects two branches of a FlexRay network
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Features

Optimized for Time-Triggered Communication Systems

  • Compliant with FlexRay Electrical Physical Layer specification V3.0.1/ISO17458-4
  • Automotive product qualification in accordance with AEC-Q100
  • Data transfer rates from 2.5 Mbit/s to 10 Mbit/s
  • Supports 60 ns minimum bit time at 400 mV differential voltage
  • Low-power management for battery-supplied ECUs
  • Very low current consumption in AS_Sleep mode
  • Leadless HVQFN44 package with improved Automated Optical Inspection (AOI) capability

Functional

  • Supports autonomous active star operation independent of the host ensuring the TJA1086G remains active even if the host fails or is switched off
  • Branches can be independently configured
  • Branch extension via TRXD0/1 inner star interface
  • 16-bit bidirectional SPI interface up to 2 Mbit/s for host communication
  • Full host control over branch status
  • Enhanced wake-up capability:
    • Remote wake-up via wake-up pattern and dedicated FlexRay data frames
    • Local wake-up via pin LWU
    • Wake-up source recognition
    • configurable per branch
  • Enhanced supply voltage monitoring on VIO, VCC, VBUF and VBAT
  • Auto I/O level adaptation to host controller supply voltage VIO
  • Can be used in 14 V, 24 V and 48 V powered systems
  • Enhanced bus error detection - detects short-circuit conditions on the bus
  • Instant transmitter shut-down interface (BGE pin)
  • Selective branch shut-down (partial networking)

Robustness

  • Bus pins protected against
  • 8 kV ESD pulses according to HBM and 6 kV ESD pulses according to IEC61000-4-2
  • All pins protected against 1000 V ESD according to CDM
  • All pins protected against 200 V ESD according to MM
  • No reverse currents from the digital input pins to VIO or VCC when the TJA1086G is not powered up
  • Bus pins short-circuit proof to battery voltage (14 V, 24 V or 48 V) and ground
  • Overtemperature detection and protection
  • Bus pins protected against transients in automotive environment (according to ISO 7637 class C)

Active Star Functional Classes

  • Active star - communication controller interface
  • Active star - bus guardian interface
  • Active star - voltage regulator control
  • Active star - logic level adaptation
  • Active star - host interface
  • Active star - increased voltage amplitude transmitter

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N true 0 PSPTJA1086Gja 2 アプリケーション・ノート Application Note t789 1 データ・シート Data Sheet t520 1 ja ja ja データ・シート Data Sheet 1 1 1 English TJA1086G Data Sheet 1517350630567721651560 PSP 407.6 KB None None documents None 1517350630567721651560 /docs/en/data-sheet/TJA1086G-Datasheet.pdf 407583 /docs/en/data-sheet/TJA1086G-Datasheet.pdf TJA1086G-Datasheet documents N N 2018-01-30 TJA1086G Data Sheet /docs/en/data-sheet/TJA1086G-Datasheet.pdf /docs/en/data-sheet/TJA1086G-Datasheet.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Jul 30, 2017 980000996212993340 Data Sheet N TJA1086G Data Sheet アプリケーション・ノート Application Note 1 2 1.1 English The TJA1086 is a 2-branch active star coupler device for applications in automotive high-speed (up to 10Mbit/s) time triggered communication systems such as FlexRay. 1519766724204719408364 PSP 1.1 MB Moderated Software Licensing For Download Without FAE None documents Extended 1519766724204719408364 /secured/assets/documents/en/application-note/TJA1086GAN.pdf 1067410 /secured/assets/documents/en/application-note/TJA1086GAN.pdf TJA1086GAN documents Y N 2018-02-27 TJA1086(G) FlexRay Active Star Coupler - Application Hints /webapp/Download?colCode=TJA1086GAN&appType=moderatedWithoutFAE&lang_cd=ja /secured/assets/documents/en/application-note/TJA1086GAN.pdf Application Note N 645036621402383989 2023-06-18 pdf Y en Mar 8, 2017 645036621402383989 Application Note N TJA1086(G) FlexRay Active Star Coupler - Application Hints false 0 TJA1086G downloads ja true 1 Y PSP Y Y アプリケーション・ノート 1 /secured/assets/documents/en/application-note/TJA1086GAN.pdf 2018-02-27 1519766724204719408364 PSP 2 Mar 8, 2017 Application Note The TJA1086 is a 2-branch active star coupler device for applications in automotive high-speed (up to 10Mbit/s) time triggered communication systems such as FlexRay. Moderated Software Licensing For Download Without FAE /secured/assets/documents/en/application-note/TJA1086GAN.pdf English documents 1067410 None 645036621402383989 2023-06-18 Y /webapp/Download?colCode=TJA1086GAN&appType=moderatedWithoutFAE&lang_cd=ja TJA1086(G) FlexRay Active Star Coupler - Application Hints /secured/assets/documents/en/application-note/TJA1086GAN.pdf documents 645036621402383989 Application Note N en Extended pdf 1.1 Y N TJA1086(G) FlexRay Active Star Coupler - Application Hints 1.1 MB TJA1086GAN N 1519766724204719408364 データ・シート 1 /docs/en/data-sheet/TJA1086G-Datasheet.pdf 2018-01-30 1517350630567721651560 PSP 1 Jul 30, 2017 Data Sheet TJA1086G Data Sheet None /docs/en/data-sheet/TJA1086G-Datasheet.pdf English documents 407583 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/TJA1086G-Datasheet.pdf TJA1086G Data Sheet /docs/en/data-sheet/TJA1086G-Datasheet.pdf documents 980000996212993340 Data Sheet N en None pdf 1 N N TJA1086G Data Sheet 407.6 KB TJA1086G-Datasheet N 1517350630567721651560 true Y Products

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