TJA1042T,118

TJA1042T 118 Application Field and Working Principle

The TJA1042T,118 is a CAN transceiver that is used to interface between a Controller Area Network (CAN) protocol controller and physical two-wire CAN bus. It is capable of providing communication and electrical isolation between the two. The device supports familiar CAN protocols including both OBD-II and CAN FD and is also compatible with other CAN/LIN/J1939 systems. This article will discuss the application field and working principle of the TJA1042T,118 transceiver.

Application Field

The applications of the TJA1042T,118 are varied, including a wide range of automotive applications, industrial control systems, and other devices that require a two-wire CAN bus interface. The device is used to enable communication between devices in a network. It is also capable of providing electrical isolation between two connected two-wire buses. This electrical isolation helps to provide protection for sensitive equipment.

Working Principle

The TJA1042T,118 works by providing a two-wire CAN bus interface between a CAN protocol controller and a physical two-wire CAN bus. It is capable of providing communication and electrical isolation between the two. The device is designed to support the CAN FD (CAN with Flexible Data rate) specification and OBD-II standard. It also supports other CAN/LIN/J1939 systems.

The device is designed to use two transistors to provide electrical isolation between the two buses. These transistors are connected to each bus’ ground and the device’s voltage regulator, which provides power both to the capacitor that forms the electrical isolation barrier and to the transceivers themselves. In addition, to prevent electromagnetic interference, the device includes electrical filters. These filters will reduce noise interference from the physical two-wire CAN bus.

The device also includes a reset circuit that sends a signal to the CAN protocol controller when it is reset or when a dominant level on the bus is detected. This helps to ensure that the CAN protocol controller receives the proper data from the connected two-wire CAN bus. Furthermore, the TJA1042T,118 has built-in protection features that help to protect the connected devices from short-circuiting, undervoltage, overvoltage and other possible causes of damage.

Conclusion

The TJA1042T,118 is a CAN transceiver that is used to interface between a Controller Area Network (CAN) protocol controller and physical two-wire CAN bus. It is capable of providing communication and electrical isolation between the two. The device supports familiar CAN protocols including both OBD-II and CAN FD, and is also compatible with other CAN/LIN/J1939 systems. It is designed to use two transistors to provide electrical isolation between the two buses, and has built-in protection features that help to protect the connected devices from possible damage. The applications of this device are varied, including a wide range of automotive, industrial and other devices.