TJA1082TT,118

The TJA1082 FlexRay node transceiver is compliant with the FlexRay electrical physical layer specification V2.1 Rev. B. In addition, it incorporates features and parameters included in V3.0.1. It is primarily intended for communication systems operating at between 2.5 Mbit/s and 10 Mbit/s, and provides an advanced interface between the protocol controller and the physical bus in a FlexRay network. The TJA1082 offers an optimized solution for Electronic Control Unit (ECU) applications that do not need enhanced power management and are typically switched by the ignition or activated by a dedicated wake-up line. The TJA1082 provides a differential transmit capability to the network and a differential receive capability to the FlexRay controller. It offers excellent ElectroMagnetic Compatibility (EMC) performance as well as high ElectroStatic Discharge (ESD) protection. The TJA1082 actively monitors system performance using dedicated error and status information (readable by any microcontroller), as well as internal voltage and temperature monitoring.

Optimized for time triggered communication systems

• Compliant with Electrical Physical Layer specification 2.1 Rev. B
• Automotive product qualification in accordance with AEC-Q100 (Grade 1)
• Data transfer at 2.5 Mbit/s, 5 Mbit/s and 10 Mbit/s
• Supports 60 ns minimum bit time at 400 mV differential voltage
• Very low ElectroMagnetic Emission (EME) to support unshielded cable
• Differential receiver with high common-mode range for excellent ElectroMagnetic Immunity (EMI)
• Auto I/O level adaptation to host controller supply voltage V_IO
• Can be used in 14 V and 42 V powered systems
• Instant shut-down interface (via BGE pin)

Low power management

• Very low current consumption in Standby mode
• Remote wake-up via a wake-up pattern or dedicated FlexRay data frames on the bus lines

Diagnosis and robustness

• Enhanced supply voltage monitoring for V_CC and V