What is the Function of TJA1043? [FAQ]

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Published: 10 June 2022 | Last Updated: 10 June 2022

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TJA1043T/1J

TJA1043T/1J

NXP USA Inc.

14 Terminations Receivers 1/1 Drivers/Receivers 1 Functions

Purchase Guide

14 Terminations Receivers 1/1 Drivers/Receivers 1 Functions

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. This post will unlock TJA1043's function, operational mode, application and more detailed information about TJA1043.

TJA1043 Pinout

TJA1043 Pinout.jpg

TJA1043 Pinout


SymbolPinDescription
TXD1transmit data input
GNDW2ground supply
Vcc3transceiver supply voltage
RXD4receive data output; reads out data from the bus lines
VIo5supply voltage for l/0 level adaptor
EN6enable control input
INH7inhibit output for switching external voltage regulators
ERR_ N8error and power-on indication output (active LOW)
WAKE9local wake-up input
VBAT10battery supply voltage
SPLIT11common-mode stabilization output
CANL12LOW-level CAN bus line
CANH13HIGH-level CAN bus line
STB_ N14standby control input (active LOW)


TJA1043 Overview

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. 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 a high speed CAN network containing nodes that need to be available at all times, even when the internal VIO and VCC supplies are switched off.


TJA1043 Block Diagram

TJA1043 Block Diagram.jpg

TJA1043 Block Diagram

TJA1043 Application Hint

TJA1043 Typical application with 3 V microcontroller.jpg

TJA1043 Typical application with 3 V microcontroller

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 Function

The TJA1043 is a stand-alone high-speed CAN transceiver with many operating modes, fail-safe features, and diagnostic capabilities that improve system dependability and power management. The transceiver combines TJA1041A capabilities with better EMC and ESD capability and quiescent current performance. Increased application flexibility is provided by improved slope control and excellent DC handling capability on the bus pins.

TJA1043 Operational Modes

The TJA1043 supports five operating modes.

TJA1043-Mode transitions when valid VCC, VIO and VBAT voltages are present.jpg

TJA1043-Mode transitions when valid VCC, VIO and VBAT voltages are present


Normal mode: The transceiver can transmit and receive data via the bus lines CANH and CANL 

Listen-only mode: The transceiver’s transmitter is disabled in Listen-only mode, effectively providing a transceiver listen-only feature.

Standby mode: Standby mode is the TJA1043’s first-level power saving mode, offering reduced current consumption.

Go-to-Sleep mode: Go-to-Sleep mode is the controlled route for entering Sleep mode. In Go-to-Sleep mode, the transceiver behaves as in Standby mode, with the addition that a go-to-sleep command is issued to the transceiver.

Sleep mode: Sleep mode is the second-level power-saving mode of the TJA1043.

Conclusion

The TJA1043 high-speed CAN transceiver connects a Controller Area Network (CAN) protocol controller to a physical two-wire CAN bus. The transceiver is intended for high-speed CAN applications in the automobile industry, and it provides differential transmit and receive capability to (a microcontroller equipped with) a CAN protocol controller.

Datasheet PDF

Download datasheets and manufacturer documentation for NXP USA Inc. TJA1043T/1J.

Specifications

NXP USA Inc. TJA1043T/1J technical specifications, attributes, parameters and parts with similar specifications to NXP USA Inc. TJA1043T/1J.
  • Type
    Parameter
  • Factory Lead Time
    6 Weeks
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    14-SOIC (0.154, 3.90mm Width)
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    YES
  • Usage Level
    Automotive grade
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~150°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • Series

    In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.

    Automotive, AEC-Q100
  • Published
    2008
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    14
  • Type
    Transceiver
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    4.5V~5.5V
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    DUAL
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    GULL WING
  • Peak Reflow Temperature (Cel)

    Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.

    NOT SPECIFIED
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    5V
  • Terminal Pitch

    The center distance from one pole to the next.

    1.27mm
  • Time@Peak Reflow Temperature-Max (s)

    Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.

    NOT SPECIFIED
  • Pin Count

    a count of all of the component leads (or pins)

    14
  • JESD-30 Code

    JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.

    R-PDSO-G14
  • Data Rate

    Data Rate is defined as the amount of data transmitted during a specified time period over a network. It is the speed at which data is transferred from one device to another or between a peripheral device and the computer. It is generally measured in Mega bits per second(Mbps) or Mega bytes per second(MBps).

    5Mbps
  • Protocol

    In electronic components, the parameter "Protocol" refers to a set of rules and standards that govern the communication between devices. It defines the format, timing, sequencing, and error checking methods for data exchange between different components or systems. Protocols ensure that devices can understand and interpret data correctly, enabling them to communicate effectively with each other. Common examples of protocols in electronics include USB, Ethernet, SPI, I2C, and Bluetooth, each with its own specifications for data transmission. Understanding and adhering to protocols is essential for ensuring compatibility and reliable communication between electronic devices.

    CANbus
  • Number of Drivers/Receivers
    1/1
  • Duplex

    In the context of electronic components, "Duplex" refers to a type of communication system that allows for bidirectional data flow. It enables two devices to communicate with each other simultaneously, allowing for both sending and receiving of data at the same time. Duplex communication can be further categorized into two types: half-duplex, where data can be transmitted in both directions but not at the same time, and full-duplex, where data can be sent and received simultaneously. This parameter is crucial in networking and telecommunications systems to ensure efficient and effective data transmission between devices.

    Half
  • Receiver Hysteresis

    Receiver hysteresis is?commonly used to ensure glitch-free reception even when differential noise is present. This application report compares the noise immunity of the SN65HVD37 to similar devices available from competitors. Contents.

    120mV
  • Length
    8.65mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    1.75mm
  • Width
    3.9mm
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    ROHS3 Compliant
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Frequently Asked Questions

What does the TJA1043 implement?

CAN physical layer

What is the TJA1043 ideal for a high speed CAN network containing nodes that need to be available at all times?

The internal VIO and VCC supplies are switched off.
TJA1043T/1J

NXP USA Inc.

In Stock: 85500

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