TJA1081GTS中文资料FlexRay node transceiver (Clamp 30)数据手册恩XP规格书

描述 Description

The TJA1081G FlexRay™ node transceiver is compliant with the FlexRay Electrical Physical Layer specification ISO 17458-4:2013. The TJA1081G is a Clamp 30 transceiver, optimized for applications that are permanently connection to the car battery. 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.

Offers an optimized solution for electronic control unit (ECU) applications that are permanently connected to the battery.

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.

特性 Features

Optimized for time-triggered communication systems
• Compliant with ISO 17458-4:2013 (see Ref. 2)
• 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 input voltage
• Very low ElectroMagnetic Emission (EME) to support unshielded cable, meeting the latest industrystandards
• Differential receiver with high common-mode range for excellent ElectroMagnetic Immunity (EMI),meeting the latest industry standards
• Auto I/O level adaptation to host controller supply voltage VIO
• Can be used in 14 V, 24 V, and 48 V powered systems
• Instant transmitter shut-down interface (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 VCC and VIO
• Two error diagnosis modes:
• Status register readout via the Serial Peripheral Interface (SPI)
• Simple error indication via pin ERRN

• Overtemperature detection
• Short-circuit detection on bus lines
• Power-on flag
• Clamping diagnosis for pins TXEN and BGE
• Bus pins protected against ±6 kV ESD pulses according to IEC61000-4-2 and ±8 kV according to HBM
• Bus pins protected against transients in automotive environment (according to ISO 7637 class C)
• Bus pins short-circuit proof to battery voltage (14 V, 24 V, and 48 V) and ground
• Maximum differential voltage between pins BP or BM and any other pin of 60 V
• Bus lines remain passive when the transceiver is not powered
• No reverse currents from the digital input pins to VIO or VCC when the transceiver is notpowered

Functional classes according to FlexRay Electrical Physical Layer specificationV 3.0.1
• Bus driver - bus guardian control interface
• Bus driver - logic level adaptation
• Bus driver - remote wake-up

应用 Application

汽车电子

• ABS / ESP

• Air Suspension

• Airbag

• Central Gateway

• Digital Motor Electronic

• Dynamic Stability Control

• Electrical Power Steering

• Integrated Chassus Mngt

• Lane Departure Warning

• Parking Assistant