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PGA900: Connect PGA900 to LIN bus?

Rene K.
Prodigy 10 points
Part Number: PGA900
Other Parts Discussed in Thread: TLIN2029A-Q1

Hi, 

I just found the PGA900 while desperately looking for a replacement of a SSC-IC with integrated LIN interface.
I was asking myself whether it is possible to connect the PGA900 through a LIN transceiver to a LIN bus.

I am quite new to the LIN topic and not really sure how to handle break, sync etc. with UART...

Has anybody gathered some experience in regard to UART connected to LIN transceivers?

Regards,


René

  • 0
    TI__Mastermind 31655 points

    Hi René,

    The PGA900 does include a general purpose UART port that could potentially be used along with a LIN transceiver with the proper firmware. However, at this time we do not have a PGA900 firmware example demonstrating this functionality. It may be helpful to discuss the UART requirements with an expert on the LIN transceiver you are considering. With a better understanding of the communication requirements of the LIN transceiver I can provide better information on the feasibility of using it alongside the PGA900.

    Regards,

    Scott

  • 0 in reply to Scott Cummins
    Prodigy 10 points

    Hey Scott,
    thanks a lot for your fast response.

    I am at the right beginning of our new project...

    Here are some preliminary requirements:
    - Targeted LIN tranceiver: TI TLIN2029A-Q1
    - Compatibility to
               ISO 17987-1..6
               SAE J2606-1
    - Measurement of: 1 resistive measurement bridge, 1 external NTC (PT might be possible)
    - Supply voltage: 9..16 V
    - Max. supply voltage: 16.5 V
    - I_LIN_LIM = 4..200 mA

    Are these the information you need?

  • 0 in reply to Rene K.
    TI__Mastermind 24258 points

    Rene K,

    Scott is on travel so I will help while he is out.  I took a quick look at the LIN2029A-Q data sheet and it looks promising.  Both the PGA900 and the LIN2029A-Q have evaluation kits, so you should be able to connect them together for a feasibility test.  I agree with Scott that it probably makes sense to contact the support team for LIN2029A-Q.  The LIN team have a lot of experience with this device and can probably give you good incite into any applicating concerns for your design.  

    Art