NXP Semiconductors TJA1046 Dual High-Speed CAN Transceivers
NXP Semiconductors TJA1046 Dual High-Speed CAN Transceivers provide two interfaces between a CAN protocol controller and the physical two-wire CAN bus. The device incorporates two fully independent TJA1044GT high-speed CAN transceivers in a single package for automotive applications requiring differential transmit and receive capability.
The NXP TJA1046 CAN Transceivers support robust communication at data rates up to 5Mbit/s for CAN FD networks and are optimized for 12V automotive systems. The devices feature a very low-current Standby mode with host and bus wake-up capability, ideal passive bus behavior when the supply voltage is off, and excellent EMC performance.
The TJA1046 is an excellent choice for networks with more than one high-speed CAN interface requiring low-power operation and CAN bus wake-up capability. The compact HVSON14 package supports significant PCB space savings compared with traditional SO packages, making the TJA1046 useful for body and gateway control units.
Features
- Two fully independent TJA1044GT high-speed CAN transceivers in a single package
- Differential transmit and receive capability for CAN protocol controllers
- Robust CAN FD communication support for high-speed automotive networks
- Very low-current Standby mode with host and bus wake-up capability
- Ideal passive behavior on the CAN bus when the supply voltage is off
- Excellent EMC performance, including operation at 500kbit/s without a common mode choke
- Predictable and fail-safe behavior under all supply conditions
- Transceivers disengage from the bus when not powered
- Transmit data and bus dominant time-out functions
- AEC-Q100 qualified, halogen-free, and RoHS-compliant device
Applications
- Automotive high-speed CAN applications
- CAN FD networks
- Body control units
- Gateway control units
- Networks requiring more than one high-speed CAN interface
- Low-power CAN systems with bus wake-up capability
Specifications
- ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliance
- ISO 11898-2:2003 and ISO 11898-5:2007 compliance
- Supply voltage range of 4.75V to 5.25V on VCC1 and VCC2 pins
- Supply current per transceiver
- Standby mode current of 10µA typical and 15µA maximum
- Normal mode bus recessive current of 2mA minimum, 5mA typical, and 10mA maximum
- Standby undervoltage detection voltage range of 3.5V to 4.3V
- Timing guaranteed for data rates up to 5Mbit/s
- TXD to RXD propagation delay of 210ns
- Bus pin ESD handling capability of 8kV IEC and HBM
- HVSON14 package with 3.0mm x 4.5mm dimensions
- PCB space savings of more than 70% compared with traditional SO packages
- Interface support for 3.3V and 5V supplied microcontrollers when microcontroller I/Os are 5V tolerant
Additional Resource
Associated Transceivers
NXP Semiconductors TJA1044 Mantis® High-Speed CAN Transceivers
Designed for high-speed CAN applications in the automotive industry.
NXP Semiconductors TJA1046V Dual High-Speed CAN Transceivers
VeLIO-certified dual high-speed CAN transceivers with Standby mode.
Block Diagram
