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TLIN1029A-Q1: TLIN1029A-Q1 TX and RX Baud Rate

Ilan Hazi
Prodigy 60 points
Part Number: TLIN1029A-Q1

Hi,

The TLIN1029A-Q1 has LIN transmit data rate up to 20-kbps and LIN receive data rate up to 100 kbps. 

If there are two TLIN1029A-Q1 that connected in LIN bus one is Master and the second is Slave, how can the Master send data with data rate up to 100 kbps (whereas transmit data rate is up to 20-kbps) if the Slave can receive data rate up to 100 kbps?

Thanks 

Ilan

  • 0
    Guru 316760 points

    When all devices on the bus are TLIN1029A-Q1, then it is not possible to use data rates above 20 kbps.

  • 0 in reply to Clemens Ladisch
    Prodigy 60 points

    Which device can be used towards the TLIN1029A-Q1 in order to get data rate above 20 kbps?

  • 0 in reply to Ilan Hazi
    Guru 316760 points

    I see now that there are no LIN transceiver that goes above 20 kbps. Apparewntly, the LIN specification does not allow more.

    The datasheets mention that the receivers support 100 kbps (only) to allow faster end-of-line programming. I guess that you would build the transmitter in the programming device from discrete components, and that it would not necessarily match other LIN specifications.

    If you have an application that requires more than 20 kbps during normal operation, then you cannot use LIN. Typically, the next higher step would be CAN.

  • 0 in reply to Clemens Ladisch
    TI__Guru 74252 points

    Ilan,

    What Clemens has said is correct. The LIN specification only defines communication up to 20kbps. So, if you are trying to design an application using LIN, it cannot go any faster than 20kbps. Now if you are trying to use a LIN transceiver for some other protocol, then TI's TLIN portfolio can transmit (not just receive) at data rates faster, but we have only characterized the transceivers up to 20kbps, so we cannot guarantee anything in the datasheet beyond that rate.

    Please let us know if you have any other questions.

    Regards,

    Eric Hackett