8-bit MicrocontrollersのトピックRe: CAN tranceiver problem

CAN tranceiver problem

binukannur — Wed, 24 Jun 2015 12:15:16 GMT

Hai,

Iam using freescale DSC controller for automotive application.Using this, I want to use CAN communication. So I used can tranceiver LT1796(http://cds.linear.com/docs/en/datasheet/1796f.pdf)) .

But problem is, controller is in 3.3v logic level but LTC tranceiver is in 5v operation.

In S08 controller it works fine with this CAN tranceiver.

Can I use 3.3v controller with 5v CAN tranceiver?

If not please suggest a tranceiver IC.

david_diaz — Thu, 25 Jun 2015 16:25:52 GMT

Hello,

Provided you adhere to the DC Electrical Characteristics mentioned on the datasheet, I do not see a problem using the LT1796 transceiver.

Please be aware of the following information:

If the microcontroller can supply the TXD signal with the features needed for the LT1796 transceiver, your application should work correctly.

In order to get more information about the CAN transceivers from Freescale, please refer to the following link:

Hope this information will be useful for you.

Have a great day.

David

binukannur — Sat, 27 Jun 2015 06:03:02 GMT

Thanks David,

It works fine. The problem is in my hardware side. I remove the pullup resister that Iam already did.