TJA1044GT-1Z-TD

TAJ1044 belongs to the high-speed CAN transceiver family, providing an interface between a CAN protocol controller and the physical two-wire CAN bus. This transceiver is designed for high-speed CAN applications in the automotive industry, offering differential transmit and receive capabilities for microcontrollers (with CAN protocol controllers). The TAJ1044 provides a feature set optimized for 12 V automotive applications, with significant improvements and outstanding EMC performance. In addition, the TAJ1044 features: ideal passive behavior on the CAN bus when the supply voltage is off; an ultra-low current standby mode with bus wake-up capability; excellent EMC performance even without a common-mode choke; and variants with a VIO pin for direct interfacing with microcontrollers operating at supply voltages from 3.3 V to 5 V. These characteristics make the TAJ1044 an excellent choice for all types of high-speed CAN nodes, especially those requiring wake-up via the CAN bus and low-power modes. The TAJ1044 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 through SAE J2284-5. The TAJ1044T variant supports data rates up to 1 Mbit/s. Other variants specify additional timing parameters defining loop delay symmetry. This implementation supports reliable communication at data rates up to 5 Mbit/s during the CAN FD fast phase.

Applications

• Automotive Networks
• Body Control Modules
• Infotainment Systems
• Advanced Driver Assistance Systems

Key features

• Fully compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14
• Ultra-low current standby mode with local and bus wake-up capability
• Optimized for 12 V automotive system applications
• Low electromagnetic emission (EME) and high electromagnetic immunity (EMI), compliant with recommended EMC standards IEC 62228-3 and SAE J2962-2
• Deep green product (halogen-free and RoHS compliant)
• Models with VIO pin allow direct interface with 3.3 V to 5 V microcontrollers. Models without VIO pin are compatible with 3.3 V and 5 V microcontrollers, provided the microcontroller I/O is 5 V tolerant
• Predictable functional behavior under all supply conditions
• Transceiver disconnected from bus (high impedance) when supply voltage falls below the undervoltage shutdown threshold
• TXD dominant timeout function
• Internal bias on TXD and STB input pins
• Ultra-low current standby mode with host and bus wake-up capability
• Models with VIO pin: CAN wake-up receiver powered by VIO, allowing VCC to be switched off
• High ESD handling capability on bus pins (8 kV IEC and HBM)
• Bus pins protected against transient disturbances in automotive environments
• Undervoltage detection on VCC and VIO pins
• Thermal protection