The controller area network (CAN bus) in a vehicle is the internal communication control centre that relays information between the vehicle’s various electronic control units (ECUs). Each ECU needs a central processing unit (CPU), CAN transceiver and CAN controller to allow it to pass data to and from the CAN bus.
What do CAN transceivers do?
The CAN transceiver connects the CAN controller to the CAN bus. Its main job is to translate the data from the bus so that the controller can read it, and vice versa. By ensuring the efficient running of the communication system, they help minimise the amount of current used.
Types of CAN transceivers
The main distinction between different types of CAN transceivers is their speed:
Low-speed CAN transceivers allow data rates up to 125 kilobits per second
High-speed CAN transceivers allow for data rates of up to 1 megabit per second
The advantage of low-speed CAN transceivers is that they can tolerate a fault in one of the communication lines without the whole communication system failing.
Description:
Controller Area Network (CAN or CAN-bus) is a
computer network protocol and bus standard designed to allow microcontrollers and devices to communicate with each other without a host computer. It was designed specifically for automotive applications but is now also ...
Description:
Infineon’s CAN (Control Area Network) transceivers are designed
for use in the automotive industry. The data rate can go up to 1Mbps and they have different features including receive only mode, INH output as well as Bus wake up inputs. ...
Description:
The MAX220–MAX249 family of line drivers/receivers is intended
for communications interfaces, particularly applications where ±12V is not available..The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.The ...
