TJA1040T/CM,118

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TJA1040T/CM is a high reliable medium flexibility LIN tranceiver, which has beendesigned to support high speed serial data communication up to 20Kbps. This module is suitable for low cost LIN network cabling topologies. TJA1040T/CM is a highly integrated, low power consumption and cost-effective module that makes it suitable for applications such as body control modules (BCM, car accessories control, seat memory) and AC control boxes, remote controls, or sensors interfaces.

Application Field

TJA1040T/CM is built for LIN bus networking applications and its main features include low EMI, low standby power and high ESD robustness. This module is ideal for applications like car body control systems, remote control peripherals, window operation, seat memory, multimedia controls, central monitoring systems, smart switches, and digital keys. This module also supports in various tasks of low speed automotive electronic systems such as motor control, windows automation, sensor interfaces, and car accessories control.

Working Principle

The TJA1040T/CM module utilizes an enhanced LIN bus transceiver with an integrated voltage regulator. It has been designed to operate at an operating temperature range of -40°C to +85°C, and in an operating voltage range of 5.5V to 18V. The integrated regulator can support an output voltage of up to 28V. This module provides excellent EMI noise immunity, low standby power and increased ESD robustness.

The module has an adjustable sampling point for optimized performance, and also provides a single-wire bidirectional communication interface. The bus will use differential signaling for robust and reliable communication. This module also supports the LIN protocol with up to 8 nodes on a single bus.

The TJA1040T/CM module has in-built safeguards against ESD, reverse polarity protection and thermal shutdown. This module provides an overload protection that allows the current on the LIN bus to be limited to 50mA. This module also provides protection against short-circuit and overload conditions.

The module is equipped with an integrated low-power operating mode, which ensures that power consumption is minimized in applications where the bus is idle. This module also supports a wide range of applications, from low data rate peripherals to high data rate applications.

The module features a robust data transmission of up to 20Kbps, which can be set via software configuration. It also provides power savings techniques such as Wake-on-Break and Sleep Line Diagnostics for improved system performance.

Overall, the TJA1040T/CM is a highly integrated, low power consuming LIN tranceiver, which is suitable for various automotive applications. It has been designed to provide reliable and robust communication at an economical price while supporting high data rate applications.

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