Enhanced CAN Transceiver Offers 8kV ESD Performance

Designed for in-car low-speed communication, the TJA1055 transceiver is an enhanced, pin-compatible version of the TJA1054 and TJA1054A.

It offers the same CAN transceiver functionality but introduces a number of improvements. These include improved ESD performance, lower current consumption in sleep mode, wake-up signalling on RXD and ERR without an active collector voltage (V_CC), and 3V interfacing with microcontrollers.

Supporting a baud rate of up to 125kBd and connectivity for up to 32 nodes with unshielded bus wires, the TJA1055 provides a differential receive and transmit capability but will switch to single-wire transmitter and/or receiver in error conditions.

A built-in slope-control function and matching of the CANL and CANH bus outputs enables very low electromagnetic emission, and the TJA1055 also offers high electromagnetic immunity in normal and in low-power modes. A high level of ESD robustness provides protection for off-board pins at up to ±8kV for the Human Body Model (HBM) and ±6kV for IEC 61000-4-2.

 

FEATURES Pin-to-pin compatible with TJA1054 and TJA1054A Baud rate up to 125kBd Up to 32 nodes can be connected Supports unshielded bus wires Fully-integrated receiver filters Transmit Data (TxD) dominant time-out function Low-current sleep mode and standby mode with wake-up via the bus lines Software accessible power-on reset flag

APPLICATIONS Automotive controller area networks

 

NXP Semiconductors / TJA1055