TJA1024HGZ

The TJA1024HGZ is an automotive-grade transceiver made for in-vehicle network protocols, such as CAN buses used in modern cars. Its goal is to bridge the physical separation between electronic control units (ECUs) and networks, allowing efficient, reliable communication between components. This transceiver features a high-speed data rate of up to 1 Mbits/s, low power consumption, and wide temperature range, making it suitable for harsh automotive environment. This article will discuss the application field and working principle of the TJA1024HGZ.

The TJA1024HGZ is designed as an automotive transceiver, which means it is designed specifically for in-vehicle network protocols. It meets the requirements of ISO 11898-2, ISO 11898-3, ISO 11898-5, and SAE J1939, making it suitable for use in automotive systems. Typical applications include communication between Electronic Control Units (ECUs) in powertrain, chassis, body, and safety systems of modern cars. It is also used in industrial automation, agricultural machinery, and marine applications.

The working principle of the TJA1024HGZ relies on determining the differential voltage across two lines as input, then amplifying that voltage to provide the output. The transceiver uses two capacitors to filter out common-mode noise from the two lines, and two opto-couplers to isolate the electric circuit from the physical environment. It also has a built-in voltage converter to deliver constant output voltage for the ECUs to process. The transceiver also has an integrated transceiver control logic, which is responsible for sending and receiving data. The logic communicates with the physical layer and decodes its signals.

The TJA1024HGZ also has an exceedance detection module responsible for detecting fault conditions, such as open-circuit, shorted-circuit, or wire breakage. When the module detects such fault conditions, it will reduce the output current up to a certain value, to protect the circuit from damage. This allows the TJA1024HGZ to provide reliable, safe communication in harsh automotive environment.

In summary, the TJA1024HGZ is an automotive grade transceiver specifically designed for in-vehicle network protocols. It features a high speed data rate, low power consumption, and wide temperature range, in addition to integrated transceiver control logic and an exceedance detection module for protection. It is ideal for automotive systems, industrial automation, agricultural machinery and marine applications.