CAN tranceiver problem

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 
已解决

CAN tranceiver problem

跳至解决方案
679 次查看
binukannur
Contributor III

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.

标签 (1)
0 项奖励
1 解答
375 次查看
david_diaz
NXP Employee
NXP Employee

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:

parameteres.JPG

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:

Controller Area Network (CAN)|Freescale

can transceiver.JPG

Hope this information will be useful for you.

Have a great day.

David

在原帖中查看解决方案

0 项奖励
2 回复数
376 次查看
david_diaz
NXP Employee
NXP Employee

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:

parameteres.JPG

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:

Controller Area Network (CAN)|Freescale

can transceiver.JPG

Hope this information will be useful for you.

Have a great day.

David

0 项奖励
375 次查看
binukannur
Contributor III

Thanks David,

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

0 项奖励