TJA1086HNJ

The TJA1086 is a FlexRay active star coupler that connects two branches of a FlexRay network. The TJA1086 is compliant with the FlexRay electrical physical layer specification V3.0.1. Several TJA1085 and TJA1086 devices can be connected via their TRXD0/1 interfaces to increase the number of branches in the network. A dedicated Communication Controller (CC) interface allows for integration into an ECU. The TJA1086 supports low-power management by offering bus wake-up capability along with battery supply and voltage regulator control. The TJA1086 meets industry standards for EMC/ESD performance and provides enhanced bus error detection, low current consumption and unmatched asymmetric delay performance. The TJA1086 also fulfills the JASPAR requirements as defined by the Japanese car industry.

General

• Compliant with FlexRay Electrical Physical Layer specification V3.0.1.
• Fulfills JASPAR requirements
• 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 TJA1086 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