NXPTJA1043_DS高速CAN收发器数据手册(英).pdf - CSDN文库

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1. General description

The TJA1043 is a high-speed CAN transceiver that 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 (up to 1 Mbit/s) CAN applications in the

automotive industry, providing differential transmit and receive capability to (a

microcontroller with) a CAN protocol controller.

The TJA1043 is a step up from the TJA1041A high-speed CAN transceiver. It offers

improved ElectroMagnetic Compatibility (EMC) and ElectroMagnetic Discharge (ESD)

performance, very low power consumption, and passive behavior when the supply voltage

is turned off. Advanced features include:

• Low-power management controls the power supply throughout the node while

supporting local and remote wake-up with wake-up source recognition

• Several protection and diagnostic functions including bus line short-circuit detection

and battery connection detection

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

These features make the TJA1043 the ideal choice for high speed CAN networks

containing nodes that need to be available all times, even when the internal V

IO

and V

CC

supplies are switched off.

2. Features and benefits

2.1 General

 Fully ISO 11898-2 and ISO 11898-5 compliant

 Suitable for 12 V and 24 V systems

 Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)

 V

IO

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

2.2 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 load) when V

BAT

absent

 Functional behavior predictable under all supply conditions

TJA1043

High-speed CAN transceiver

Rev. 01 — 30 March 2010 Product data sheet

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