The TJA1042 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 the differential transmit and receive capability to(a microcontroller with)a CANprotocol controller.

The TJA1042 belongs to the third generation of high-speed CAN transceivers from NXPSemiconductors,offering significant improvements over first-and second-generationdevices such as the TJA1040.It offers improved ElectroMagnetic Compatibility(EMC)and ElectroStatic Discharge(ESD)performance,and also 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

TJA1042T/3 and TJA1042TK/3 can be interfaced directly to microcontrollers withsupply voltages from 3 V to 5 V

The TJA1042 implements the CAN physical layer as defined in the current ISO11898 standard(ISO11898-2:2003,ISO11898-5:2007)and the pending updated version of ISO 11898-2:2016.Pending the release of the updated version of ISO11898-2:2016 including CAN FD and SAEJ2284-4/5,additional timing parameters defining loop delay symmetry are specified.Thisimplementation enables reliable communication in the CAN FD fast phase at data rates upto 5 Mbit/s.

These features make the TJA1042 an excellent choice for all types of HS-CAN networks,in nodes that require a low-power mode with wake-up capability via the CAN bus.

特性

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

Timing guaranteed for 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 on TJA1042T/3 and TJA1042TK/3 allows for direct interfacing with 3 V to 5 Vmicrocontrollers

SPLIT voltage output on TJA1042T for stabilizing the recessive bus level

Available in SO8 package and leadless HVSON8 package(3.0 mm×3.0 mm)withimproved Automated Optical Inspection(AOI)capability

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

AEC-Q100 qualified

Predictable and fail-safe behaviorVery low-current Standby mode with host and bus wake-up capability

Functional behavior predictable under all supply conditions

Transceiver disengages from the bus when not powered up(zero loads)

Transmit Data(TXD)dominant time-out function

Bus-dominant time-out function in Standby mode

Undervoltage detection on pins VCC and VIO

ProtectionsHigh ESD handling capability on the bus pins(±8 kV)

High voltage robustness on CAN pins(±58 V)

Bus pins protected against transients in automotive environments

Thermally protected

应用

Automotive

•Hybrid and Electric Vehicle Power Inverter