TJA1042T/3-JSM

The TJA1042 high-speed CAN transceiver provides an interface between a CAN protocol controller and the physical two-wire CAN bus. Designed for high-speed CAN applications in the automotive industry, it offers differential transmit and receive capabilities for microcontrollers (with CAN protocol controllers). The TJA1042 represents a new generation of high-speed CAN transceivers with significant improvements over the TJA1040. It delivers enhanced EMC and ESD performance, along with the following features: ideal passive behavior on the CAN bus when the supply voltage is switched off; an ultra-low-current standby mode with bus wake-up capability; TJA1042T/3 and TJA1042TK/3 can be directly interfaced with microcontrollers operating at supply voltages from 3V to 5V. The TJA1042 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 through SAE J2284-5. This implementation supports reliable communication at data rates up to 5Mbit/s during the CAN FD fast phase. These features make the TJA1042 an excellent choice for all types of high-speed CAN networks, particularly for nodes requiring wake-up via the CAN bus and low-power mode operation.

Applications

• Industrial automation, control, sensors, and drive systems
• Building, security, and climate control automation
• Telecom base station status and control

Key features

• Compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5
• Guaranteed timing for CAN FD fast-phase data rates up to 5 Mbit/s
• Suitable for 12 V and 24 V systems
• Low electromagnetic emission (EME) and high EMI immunity
• Vio input on TJA1042T/3 and TJA1042TK/3 enables direct interfacing with 3 V to 5 V microcontrollers
• SPLIT voltage output on TJA1042T for stabilizing the recessive bus level
• Available in SO8 package and leadless DFN-8 package (3.0×3.0 mm) with improved AOI capability
• Green product (halogen-free and RoHS compliant)
• Ultra-low-current standby mode with local and bus wake-up capability
• Predictable functional behavior under all supply conditions
• Transceiver disconnected from bus when unpowered (zero load)
• TXD dominant timeout function
• Bus dominant timeout in standby mode
• Undervoltage detection on pins Vcc and Vio
• High ESD handling capability on bus pins (±8 kV)
• High-voltage robustness on CAN pins (±70 V)
• Bus pins protected against transients in automotive environments
• Thermal protection