XLA1044T/1

XLA1044 is part of a 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 to the CAN protocol controller. The XLA1044 offers a feature set optimized for 12 V automotive applications, with significant improvements and excellent EMC performance. In addition, the XLA1044 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; outstanding 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 features make the XLA1044 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 XLA1044 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 through SAE J2284-5. The XLA1044T 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.

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 and high electromagnetic immunity, compliant with proposed EMC standards IEC 62228-3 and SAE J2962-2
• Green product
• Variants with VIO pin allow direct interface to 3.3 V to 5 V microcontrollers. Variants without VIO pin support interface to microcontrollers with 3.3 V and 5 V supplies when microcontroller I/O is 5 V tolerant
• Predictable functional behavior under all supply conditions
• Transceiver disconnected from bus when supply voltage falls below shutdown undervoltage threshold
• Transmit data dominant timeout
• Internal biasing on TXD and STB input pins
• Ultra-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 switched off
• High ESD handling capability on bus pins
• Bus pins protected against transients in automotive environments
• Undervoltage detection on VCC and VIO pins
• Thermal protection