TJA1055: Fault-Tolerant CAN Transceiver

Overview

The TJA1055 is the interface between the protocol controller and the physical bus wires in a Controller Area Network (CAN). It is primarily intended for low-speed applications of up to 125 kBd in passenger cars. The device provides differential receive and transmit capability but will switch to single-wire transmitter and/or receiver in error conditions. Key highlights of the TJA1055.

Improved ElectroStatic Discharge (ESD) performance
Lower current consumption in sleep mode
Wake-up signaling on RXD and ERR without VCC active
3 V interfacing with microcontroller possible with TJA1055T/3

Features

Key Features

Baud rate up to 125 kBd
Up to 32 nodes can be connected
Supports unshielded bus wires
Very good EMC performance
Fully integrated receiver filters
Transmit Data (TxD) dominant time-out function

Bus failure management

Supports single-wire transmission modes with ground offset voltages up to 1.5 V
Automatic switching to single-wire mode in the event of bus failures.
Automatic reset to differential mode if bus failure is removed
Full wake-up capability during failure modes

Features

Key Features

Baud rate up to 125 kBd
Up to 32 nodes can be connected
Supports unshielded bus wires
Very good EMC performance
Fully integrated receiver filters
Transmit Data (TxD) dominant time-out function

Bus failure management

Supports single-wire transmission modes with ground offset voltages up to 1.5 V
Automatic switching to single-wire mode in the event of bus failures.
Automatic reset to differential mode if bus failure is removed
Full wake-up capability during failure modes

Application Notes

TJA1055 Block Diagram

TJA1055 Block Diagram

SO14 Package

Target Applications for Fault-tolerant CAN Network

Target Applications for Fault-tolerant CAN Network

TJA1055 Block Diagram
SO14 Package
Target Applications for Fault-tolerant CAN Network

TJA1055 Block Diagram

TJA1055 Block Diagram

SO14 Package

Target Applications for Fault-tolerant CAN Network

Target Applications for Fault-tolerant CAN Network

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Target Applications

Industrial

Intermediate Flight Controller