TJA1051T/E,118 Integrated Circuits (ICs)

The TJA1051T/E is a physical layer transceiver used for automotive applications. The chipset is built on a combination of CMOS and BiCMOS processes for improved noise immunity and temperature range. It is compliant with ISO 11898-2 and ISO 11898-5, and can support all 5 major automotive physical layer versions (ISO, CAN A, CAN B, CAN FD ISO, and CAN FD CAN A).

Application Field

The primary application of the TJA1051T/E is in automobiles as it is designed to EMC and environmental requirements needed for automotive applications. It is ideal for implementations in car body electronics, infotainment and human machine interface (HMI) controllers. It is also suitable for applications in industrial automation and medical devices.

Working Principle

The TJA1051T/E is a transceiver that consists of two main parts: a physical interface device (PHY) and a medium access controller (MAC). The PHY provides physical layer functionality and controls signal integrity and distortion. It is responsible for regulating and controlling signal levels, signal amplitudes, and signal timing for safe and reliable communication. The MAC provides medium access control (MAC) layer functionality and ensures that messages are sent and received with proper signal timing. It also provides message filtering and automated error handling.

The TJA1051T/E supports multiple data rates up to 12 Mbps, as well as three types of connection methods: single-wire, distributed-wire and dual-wire. In single-wire mode, the TJA1051T/E transmits and receives data over a single wire, using a single differential signal for both transmitting and receiving. In distributed-wire mode, the PHY transmits one data packet per wire and the receiver collects the data packets, allowing for faster data transfer. In dual-wire mode, the PHY transmits and receives both the differential and single-wire signals concurrently, further increasing the data rate.

The TJA1051T/E provides advanced error handling and diagnostic capabilities. It offers various error detection measures, including bit stuffing and error detection codes, as well as microcontroller-friendly diagnostics such as programmable timers and alert and error LEDs. It also provides several advanced power-saving features such as Sleep, Standby and Low Power Sleep modes, as well as auto-sleep modes for data reception.

In conclusion, the TJA1051T/E is a highly reliable and versatile physical layer transceiver, which is suitable for a variety of automotive applications. It features advanced error detection and diagnostic features, as well as various power-saving features, for optimized performance. It is also compliant with ISO 11898-2 and ISO 11898-5, and it supports all 5 major automotive physical layer versions.