RS-422 to CANbus Transceiver

alikaan

Other Parts Discussed in Thread: THVD1500, TM4C1230D5PM, TMS320F28030

Hi there,

We're looking for a IC for RS-422 to CANbus interface conversion. Also it should be work with -40 celsius degree. If I can get a recommendation for this application, it would be wonderful.

Thanx !

over 6 years ago

0 Hao L over 6 years ago

TI__Mastermind 25705 points

Hi,

Do you want to convert RS-422 signal to CAN bus? Or do you want an IC work for both RS-422 and CAN interface, like 'level shifter'? If this former, it's hard if you want to comply with CAN protocol. Can you give more description about your application?

Regards,
Hao

0 alikaan over 6 years ago in reply to Hao L

Expert 2315 points

Hi Hao,

I would like to convert RS-422 signal to CAN bus signal.

Thanks,

0 Hao L over 6 years ago in reply to alikaan

TI__Mastermind 25705 points

Hi,

Thanks for your confirmation. Do you plan to use CAN protocol? Where is the CAN controller in your system? I'm sorry I have to ask some information first.

Regards,

Hao

0 alikaan over 6 years ago in reply to Hao L

Expert 2315 points

My diagram:

RS-422 Signal coming from sensor -> conversion IC -> CANbus

Thanks

0 Hao L over 6 years ago in reply to alikaan

TI__Mastermind 25705 points

In this case, you may need to have:
RS-422 Signal coming from sensor -> RS-422 Transceiver -> MCU with CAN controller -> CAN Transceiver -> CANbus

One of the basic function RS-422 transceiver you may be interested is THVD1500 (low data rate, low ESD). I'm not an expert on MCUs. Here is an example - TM4C1230D5PM comes with one CAN channel. For CAN transceiver TCAN1042 is a good choice. Please let me know if you have more questions.

Regards,
Hao

0 alikaan over 6 years ago in reply to Hao L

Expert 2315 points

Thanks for advice, I'm also thinking that, MCU would be better. Is there any good choice for C2000 series ?

Thanks.

0 Hao L over 6 years ago in reply to alikaan

TI__Mastermind 25705 points

You can refer to this reference design, in which a C2000 (TMS320F28030) is used.

Regards,

Hao

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RS-422 to CANbus Transceiver