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Key Specifications
Product Description The UMCAN1044 is a high-speed CAN transceiver that provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing the differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
The UMCAN1044 offers a feature set optimized for 12 V automotive applications and excellent ElectroMagnetic Compatibility (EMC) performance. Additionally, the UMCAN1044 features: • Ideal passive behavior to the CAN bus when the supply voltage is off • A very low–current Standby mode with bus wake–up capability • Excellent EMC performance, even without a common mode choke • Variants with a VIO pin can be interfaced directly with microcontrollers with supply voltages from 3.3 V and 5 V The UMCAN1044 implements the CAN physical layer as defined in ISO 11898-2:2024 and SAE J2284-1 to SAE J2284-5. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s. These features make the UMCAN1044 an excellent choice for all types of HS-CAN networks, in nodes that require a standby mode with wake-up capability via the bus. Features
- Fully ISO 11898-2:2024, SAE J2284-1 to SAE J2284-5 and SAE J1939-14 compliant
- Supply Voltage: 4.5V to 5.5V
- VIO Level shifting supports 2.9V to 5.5V - 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
- Up to 8 Mbps operation in simpler networks
Pin Configuration
 Applications
- High–speed CAN applications in the automotive industry
- Infrastructure and farm equipment
- Elevator- Networked sensors/actuators Ordering Information
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