TJA1043.pdf_tja1043中文资料资源-CSDN文库

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1. General description

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 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

The TJA1043 implements the CAN physical layer as defined in ISO 11898-2:2016 and

SAE J2284-1 to SAE J2284-5. This implementation enables reliable communication in the

CAN FD fast phase at data rates up to 5 Mbit/s.

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

and V

supplies are switched off.

2. Features and benefits

2.1 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)

 V

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

TJA1043

High-speed CAN transceiver

Rev. 6 — 10 November 2017 Product data sheet

Product data sheet Rev. 6 — 10 November 2017 2 of 32

NXP Semiconductors

TJA1043

High-speed CAN transceiver

 Leadless HVSON14 package (3.0 mm  4.5 mm) with improved Automated Optical

Inspection (AOI) capability

 AEC-Q100 qualified

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

compliant)

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

2.3 Protection and diagnosis (detection and signalling)

 High ESD handling capability on the bus pins

 Bus pins and V

BAT

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 V

, V

and V

BAT

 Bus line short-circuit diagnosis

 Bus dominant clamping diagnosis

 Cold start diagnosis (first battery connection)

3. Quick reference data

Table 1. Quick reference data

Symbol Parameter Conditions Min Typ Max Unit

supply voltage 4.5 - 5.5 V

supply voltage on pin V

2.8 - 5.5 V

uvd(VCC)

undervoltage detection voltage on

pin V

33.54.3V

uvd(VIO)

undervoltage detection voltage on

pin V

BAT

or V

> 4.5 V 0.8 1.8 2.5 V

supply current Normal mode; bus dominant 30 48 65 mA

Normal or Listen-only mode; bus recessive 3 6 9 mA

Standby or Sleep mode 0 0.75 2 A

supply current on pin V

Normal mode; V

TXD

= 0 V (dominant) - 150 500 A

Normal or Listen-only mode; V

TXD

(recessive)

014 A

Standby or Sleep mode 0 1 4 A

ESD

electrostatic discharge voltage IEC 61000-4-2 at pins CANH and CANL 8- +8kV

剩余32页未读，继续阅读

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