TJA1051T/3,118 - English Editing Encyclopedia Entry

Product Overview

Category

The TJA1051T/3,118 belongs to the category of transceiver integrated circuits.

Use

This product is primarily used for communication purposes in automotive applications.

Characteristics

• The TJA1051T/3,118 is a high-speed CAN (Controller Area Network) transceiver.
• It operates at a maximum data rate of 1 Mbps.
• This transceiver is designed to meet the requirements of the ISO 11898-2 standard.
• It provides reliable and robust communication between microcontrollers and the CAN bus.

Package and Quantity

The TJA1051T/3,118 is available in a small outline transistor (SOT) package. The package type is SOT96-1 (SO8). It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply voltage: 4.5 V to 5.5 V
• Operating temperature range: -40°C to +125°C
• Standby current consumption: 10 µA (typical)
• Transmitting current: 120 mA (maximum)
• Receiving current: 20 mA (maximum)

Pin Configuration

The TJA1051T/3,118 has an 8-pin configuration as follows:

Pin 1: VCC Pin 2: TXD Pin 3: GND Pin 4: RXD Pin 5: VREF Pin 6: CANH Pin 7: CANL Pin 8: STB

Functional Features

• High-speed transmission and reception of CAN messages.
• Supports both 5V and 3.3V microcontroller interfaces.
• Integrated protection features against electrostatic discharge (ESD).
• Low standby current consumption for power-saving applications.
• Built-in thermal protection to prevent overheating.

Advantages and Disadvantages

Advantages

• High-speed data transmission capability.
• Wide operating temperature range suitable for automotive environments.
• Robust protection against ESD.
• Compatibility with both 5V and 3.3V microcontrollers.

Disadvantages

• Relatively high power consumption during transmission.
• Limited availability of alternative models in the market.

Working Principles

The TJA1051T/3,118 operates based on the CAN protocol, which uses a differential signaling scheme. It transmits and receives data over two wires, CANH and CANL, using a balanced voltage level. The transceiver converts the digital signals from the microcontroller into differential voltages suitable for transmission on the CAN bus. It also performs the reverse operation, converting received differential voltages back into digital signals for the microcontroller.

Application Field Plans

The TJA1051T/3,118 is widely used in various automotive applications, including: - Electronic control units (ECUs) - Body control modules - Powertrain systems - Infotainment systems - Advanced driver-assistance systems (ADAS)

Alternative Models

While the TJA1051T/3,118 is a popular choice, there are alternative models available in the market that offer similar functionality. Some notable alternatives include: - MCP2551 - SN65HVD230 - PCA82C250

These alternative models can be considered based on specific application requirements and availability.

In conclusion, the TJA1051T/3,118 is a high-speed CAN transceiver designed for automotive applications. Its robust communication capabilities, wide operating temperature range, and compatibility with different microcontroller interfaces make it a reliable choice for various automotive systems.

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