TJA1044T-JSM

The TJA1044 is a member of the Mantis family of high-speed CAN transceivers. It provides an interface between the CAN protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing differential transmit and receive capability for CAN protocol controllers. The TJA1044 offers a feature set optimized for 12V automotive applications, with significant improvements over devices such as the TJA1040 and TJA1042, and delivers excellent EMC performance. In addition, the TJA1044 features the following characteristics: ideal passive behavior on the CAN bus when power is switched off; an ultra-low current standby mode with bus wake-up capability; outstanding EMC performance without the need for a common-mode choke, even at data rates up to 500 kbit/s; and the TJA1044T/3 and TJA1044TK/3 can directly interface with microcontrollers operating at supply voltages from 2.2V to 5.5V. These features make the TJA1044 an excellent choice for all types of high-speed CAN networks, particularly for nodes that require wake-up via the CAN bus and low-power operating modes. The TJA1044 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 through SAE J2284-5. The TJA1044T supports data rates up to 1 Mbit/s. Other variants also specify additional timing parameters that define loop delay symmetry. This implementation supports reliable communication at data rates up to 5 Mbit/s during the CAN FD fast phase.

Applications

• Automotive & Transportation
• Body Control Module
• Automotive Gateway
• Advanced Driver Assistance Systems

Key features

• Fully compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5
• Ultra-low current standby mode with local and bus wake-up capability
• Optimized for 12V automotive system applications
• Green product (halogen-free and RoHS compliant)
• VIO input on TJA1044x/3 variants allows direct interfacing with 3V to 5V microcontrollers. Variants without VIO pin are compatible with 3.3V and 5V microcontrollers, provided the microcontroller I/Os are 5V tolerant.
• Both VIO and non-VIO variants available in SOP-8 and leadless DFN-8 (3.0×3.0 mm) packages; DFN-8 package features improved AOI capability.
• Predictable functional behavior under all supply conditions
• Unpowered transceiver disconnected from bus (zero load)
• Transmit data and bus dominant timeout function
• Internal bias on TXD and STB input pins
• High ESD handling capability on bus pins
• Bus pins protected against transients in automotive environments
• Under-voltage detection on VCC and VIO pins
• Thermal protection