TJA1046V
Dual high-speed CAN transceiver with Standby mode
Rev. 1 — 2 March 2018
Product data sheet
1. General description
The TJA1046V is a dual high-speed CAN transceiver that provides two interfaces
between a Controller Area Network (CAN) protocol controller and the physical two-wire
CAN-bus. It is composed of two fully independent TJA1044V transceivers. The
transceivers are 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 TJA1046V guarantees robust communication at data rates up to
5 Mbit/s as used in, for example, CAN FD networks.
The TJA1046V offers a feature set optimized for 12 V automotive applications and
excellent ElectroMagnetic Compatibility (EMC) performance.
Additionally, the TJA1046V 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 at speeds up to 500 kbit/s, even without a common mode
choke
The HVSON package allows for more than 70 % PCB space saving compared with
traditional SO packages. These features make the TJA1046V an excellent choice for
networks containing more than one HS-CAN interface requiring a low-power mode with
wake-up capability via the CAN-bus, especially for body and gateway control units.
The TJA1046V implements the CAN physical layer as defined in ISO 11898-2:2016 and
SAE J2284-1 to SAE J2284-5. Additional timing parameters defining loop delay symmetry
are specified. This implementation enables reliable communication in the CAN FD fast
phase at data rates up to 5 Mbit/s.
2. Features and benefits
2.1 General
Two fully independent TJA1044V HS-CAN transceivers combined in a single package
Fully ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
Certified according to latest VeLIO (Vehicle LAN Interoperability and Optimization) test
requirements
Timing guaranteed for data rates up to 5 Mbit/s
Improved TXD to RXD propagation delay of 210 ns
Very low-current Standby mode with host and bus wake-up capability
Optimized for use in 12 V automotive systems