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TCAN1044A-Q1: replacement NXP TJA1049

David Yang
Intellectual 730 points
Part Number: TCAN1044A-Q1

Tool/software:

Hi,

The current customer RnD uses NXP TJA1049. There are suggestions to use TCAN1044A to replace NXP TJA1049.

The price is acceptable for purchaser, but the RnD feedback if they change CAN transceiver and the communication needs to be re-tested and verified.

Is there any relevant information that can prove that TCAN1044A can completely replace NXP TJA1049?

Thanks & best regards

  • 0
    TI__Guru 74252 points

    David,

    These devices are identical in pinout and function, besides the wake-up response. The TCAN1044A-Q1 responds to a dominant->recessive->dominant wake-up pulse, where RXD will toggle low after the second dominant pulse and ensuing dominant pulses thereafter. The TJA1049 responds recessive->dominant wake-up pulse, and then RXD will respond after only one dominant. 

    Best Match Additional Match
    Device TJA1049T TCAN1044A-Q1 TCAN1044AV-Q1
    Datasheet TCAN1044A-Q1 Datasheet TCAN1044AV-Q1 Datasheet
    Supplier NXP TI TI
    CAN Specification Referred ISO11898-2:2016 ISO 11898-2:2016 & -5:2007 ISO 11898-2:2016 & -5:2007
    Subcategory 5V, Single, High Speed 5V, Single, High Speed 5V, Single, High Speed
    Maximum Signaling Rate 5 Mbps 8 MBPs 8 MBPs
    Supply Voltages Vcc Absolute (Min to Max) -0.3 to +7.0 -0.3 to +6.0 -0.3 to +6.0
      Vcc Operating (Min to Max) 4.75 to 5.25 4.5 to 5.5 4.5 to 5.5
      Vio / Vs Operating (Min to Max) N/A N/A 1.7 to 5.5
    CAN Bus Pins Absolute Voltage (Min to Max) -58 to +58 -58 to +58 -58 to +58
    ESD HBM CAN Bus Pins ESD (kV) ±8 ±10 ±10
    HBM All Pins ESD (kV) ±4 ±4 ±4
      IEC 6100-4-2 on CANH and CANL (kV) ±8 ±8 ±8
    Junction Temperature Absolute (Min to Max) (°C) -40 to +150 -40 to +150 -40 to +150
    Packaging IC Package Options SO8, HVSON8 (K variant) SOIC8, VSON8, SOT8 SOIC8, VSON8, SOT8
    Pin 5 SPLIT NC Vio
    Pin 8 STB STB STB
    Dominant State Timeout Feature Yes Yes Yes
    24V / Commercial Vehicle Compliant Yes Yes Yes

    Above is also a comparison table of electrical parameters. If you visit the TRX Seismic page, you can find a CAN master comparison tool that will automatically search and create a comparison table based on the competition device. Please let us know if you have any other questions. 

    Regards,

    Eric Hackett