TJA1043 High-speed Can Transceiver: Datasheet, Application Hints, Test Circuit

TJA1043 Pinout

TJA1043 Symbol

TJA1043 Footprint

TJA1043 3D Model

The TJA1043 high-speed CAN transceiver 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 differential transmit and receive capability to (a microcontroller with) a CAN protocol controller. The TJA1043 belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors, offering significant improvements over first- and second-generation devices such as the TJA1041A. It offers improved ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance, very low power consumption, and passive behaviour when the supply voltage is turned off.

General

• ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant

• Loop delay symmetry timing enables reliable communication at data rates up to

• 5 Mbit/s in the CAN FD fast phase

• Suitable for 12 V and 24 V systems

• Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI)

• VIO input allows for direct interfacing with 3 V and 5 V microcontrollers

• SPLIT voltage output for stabilizing the recessive bus level

• Listen-only mode for node diagnosis and failure containment

• Available in SO14 and HVSON14 packages

• Leadless HVSON14 package (3.0 mm, 5 mm) with improved Automated optical inspection (AOI) capability

• AEC-Q100 qualified

• Dark green product (halogen-free and Restriction of Hazardous Substances (RoHS)compliant)

Low-power management

• Very low current Standby and Sleep modes, with local and remote wake-up

• Capability to power down the entire node while supporting local, remote and host wake-up

• Wake-up source recognition

• Transceiver disengages from the bus (zero loads) when VBAT absent

• Functional behaviour predictable under all supply conditions

Protection and diagnosis (detection and signalling)

• High ESD handling capability on the bus pins

• Bus pins and VBAT protected against transients in automotive environments

• Transmit Data (TXD) dominant time-out function with a diagnosis

• TXD-to-RDX short-circuit handler with a diagnosis

• Thermal protection with a diagnosis

• Undervoltage detection and recovery on pins VCC, VIO and VBAT

• Bus line short-circuit diagnosis

• Bus dominant clamping diagnosis

• Cold start diagnosis (first battery connection)

The TJA1043 is a stand-alone high-speed CAN transceiver with a number of operating modes, fail-safe features and diagnostic features that offer enhanced system reliability and advanced power management. The transceiver combines the functionality of the TJA1041A with improved EMC and ESD capability and quiescent current performance. Improved slope control and high DC handling capability on the bus pins provide additional application flexibility.

TJA1043 Block Diagram

TJA1043 Application Diagram

Further information on the application of the TJA1043 can be found in NXP application hints AH1014 ‘Application Hints - Standalone high speed CAN transceiver TJA1042/TJA1043/TJA1048/TJA1051’.

TJA1043 Test circuit for timing characteristics

TJA1043 Test circuit for measuring transceiver driver symmetry

TJA1043 Package