TJA1044T

2.1 General • Fully ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5 and SAE J1939-14 compliant • Very low-current Standby mode with local and bus wake-up capability • Optimized for use in 12 V automotive systems • Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI), according to proposed EMC Standards IEC 62228-3 and SAE J2962-2 • AEC-Q100 qualified • Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant) • Variants with a VIO pin allow for direct interfacing with 3.3 V to 5 V microcontrollers. Variants without a VIO pin can interface with 3.3 V (except TJA1044C) and 5 V-supplied microcontrollers, provided the microcontroller I/Os are 5 V tolerant. • Shorter propagation delay on the TJA1044B and TJA1044C variants supports larger network topologies (see Table 8) • Both VIO and non-VIO variants are available in SO8 and leadless HVSON8 (3.0 mm × 3.0 mm) packages; HVSON8 with improved Automated Optical Inspection (AOI) capability. 2.2 Predictable and fail-safe behavior • Functional behavior predictable under all supply conditions • Transceiver disengages from the bus (high-ohmic) when the supply voltage drops below the switch-off undervoltage threshold • Transmit Data (TXD) dominant time-out functions • Internal biasing of TXD and STB input pins 2.3 Low-power management • Very low-current Standby mode with host and bus wake-up capability • Variants with VIO pin: CAN wake-up receiver powered by VIO allowing VCC to be shut down • Variants with VIO pin and TJA1044C: CAN wake-up pattern filter time of 0.5 μs to 1.8 μs, meeting Classical CAN and CAN FD requirements 2.4 Protection • High ESD handling capability on the bus pins (8 kV IEC and HBM) • Bus pins protected against transients in automotive environments • Undervoltage detection on pins VCC and VIO • Thermally protected 2.5 TJA1044 CAN FD (applicable to all product variants except TJA1044T) • Timing guaranteed for CAN FD data rates up to 5 Mbit/s