The TJA1043 high-speed CAN transceiver provides an interface between a ControllerArea Network(CAN)protocol controller and the physical two-wire CAN bus.Thetransceiver is designed for high-speed CAN applications in the automotive industry,providing differential transmit and receive capability to(a microcontroller with)a CANprotocol controller.

The TJA1043 belongs to the third generation of high-speed CAN transceivers from NXPSemiconductors,offering significant improvements over first-and second-generationdevices such as the TJA1041A.It offers improved ElectroMagnetic Compatibility(EMC)and ElectroMagnetic Discharge(ESD)performance,very low power consumption,andpassive behavior when the supply voltage is turned off.Advanced features include:

Low-power management controls the power supply throughout the node whilesupporting local and remote wake-up with wake-up source recognition

Several protection and diagnostic functions including bus line short-circuit detectionand battery connection detection

Can be interfaced directly to microcontrollers with supply voltages from 3 V to 5 V

The TJA1043 implements the CAN physical layer as defined in the current ISO11898 standard(ISO11898-2:2003,ISO11898-5:2007 and the pending updated version of ISO11898-2:2016).Pending the release of ISO11898-2:2016 including CAN FD and SAE-J2284-4/5,additionaltiming parameters defining loop delay symmetry are specified.This implementationenables reliable communication in the CAN FD fast phase at data rates up to 5Mbit/s.

These features make the TJA1043 the ideal choice for high speed CAN networkscontaining nodes that need to be available all times,even when the internal VIO and VCCsupplies are switched off.

特性

GeneralFully ISO 11898-2:2003 and ISO 11898-5:2007 compliant

Loop delay symmetry timing enables reliable communication at data rates up to 5 Mbit/s in the CANFD 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×4.5 mm)with improved Automated OpticalInspection(AOI)capability

AEC-Q100 qualified

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

Low-power managementVery low current Standby and Sleep modes,with local and remote wake-up

Capability to power down the entire node while supporting local,remote and hostwake-up

Wake-up source recognition

Transceiver disengages from the bus(zero load)when VBAT absent

Functional behavior 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 diagnosis

TXD-to-RXD short-circuit handler with diagnosis

Thermal protection with 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)