TJA1055T/CM,118

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 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. The TJA1055 is the enhanced version of the TJA1054 and TJA1054A. TJA1055 has the same functionality but in addition offering a number of improvements. The most important improvements of the TJA1055 with respect to the TJA1054 and TJA1054A are:

Optimized for in-car low-speed communication

• Pin-to-pin compatible with TJA1054 and TJA1054A
• Baud rate up to 125 kBd
• Up to 32 nodes can be connected
• Supports unshielded bus wires
• Very low ElectroMagnetic Emission (EME) due to built-in slope control function and a very good matching of the CANL and CANH bus outputs
• Very high ElectroMagnetic Immunity (EMI) in normal operating mode and in low power modes
• Fully integrated receiver filters
• Transmit Data (TxD) dominant time-out function
• High ESD robustness:
  • +-8 kV Electrostatic Discharge (ESD) protection Human Body Model (HBM) for off-board pins
  • +-6 kV Electrostatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins
• Low-voltage microcontroller support

Bus failure management

• Supports single-wire transmission modes with ground offset voltages up to 1.5 V
• Automatic switching to single-wire mode