TJA1057GT/1Z

Product Overview

Category

The TJA1057GT/1Z belongs to the category of automotive communication ICs.

Use

This product is primarily used for in-vehicle communication systems, specifically for applications involving the Controller Area Network (CAN) protocol.

Characteristics

• The TJA1057GT/1Z is a high-speed CAN transceiver that supports data rates up to 5 Mbps.
• It operates with a supply voltage range of 4.5V to 5.5V.
• This transceiver is designed to meet the requirements of the ISO 11898-2 standard.
• It features excellent electromagnetic compatibility (EMC) performance, ensuring reliable communication in automotive environments.
• The TJA1057GT/1Z offers low power consumption, making it suitable for energy-efficient applications.

Package and Quantity

The TJA1057GT/1Z is available in a small form factor package, such as SO8 or DFN8. The exact package type may vary depending on the manufacturer. Typically, this product is sold in reels or tubes containing a specific quantity, usually ranging from 100 to 1000 units per package.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Data Rate: Up to 5 Mbps
• Operating Temperature Range: -40°C to +125°C
• ESD Protection: ±8 kV (HBM)
• Quiescent Current: <10 µA
• Transmitting Output Voltage: 0 to VCC
• Receiving Input Voltage: -36V to +36V
• Standby Current: <1 µA

Detailed Pin Configuration

The TJA1057GT/1Z has a total of 8 pins, which are assigned specific functions as follows:

1. VCC: Supply voltage input
2. GND: Ground reference
3. TXD: Transmit data output
4. RXD: Receive data input
5. VREF: Reference voltage output
6. CANL: CAN low-level input/output
7. CANH: CAN high-level input/output
8. STB: Standby control input

Functional Features

• High-speed communication: The TJA1057GT/1Z supports data rates up to 5 Mbps, enabling fast and efficient transmission of data in automotive networks.
• Robust EMC performance: This transceiver is designed to meet stringent electromagnetic compatibility requirements, ensuring reliable communication even in noisy automotive environments.
• Low power consumption: With a quiescent current of less than 10 µA and standby current of less than 1 µA, the TJA1057GT/1Z helps optimize energy efficiency in automotive applications.
• ESD protection: The device offers ±8 kV electrostatic discharge (ESD) protection, safeguarding against potential damage during handling and operation.

Advantages and Disadvantages

Advantages

• High-speed data transmission capability
• Excellent EMC performance
• Low power consumption
• ESD protection for enhanced reliability

Disadvantages

• Limited compatibility with non-CAN protocols
• Requires additional external components for complete system integration

Working Principles

The TJA1057GT/1Z operates based on the Controller Area Network (CAN) protocol, which is widely used in automotive applications. It acts as a transceiver, facilitating bidirectional communication between the microcontroller and the CAN bus. The transceiver converts the digital signals from the microcontroller into differential voltage levels suitable for transmission over the CAN bus. Similarly, it receives differential signals from the bus and converts them into digital signals for the microcontroller to process.

Detailed Application Field Plans

The TJA1057GT/1Z is extensively used in various automotive applications, including:

1. Automotive body control systems
2. Engine management systems
3. Infotainment systems
4. Advanced driver-assistance systems (ADAS)
5. Electric vehicle communication networks

Detailed and Complete Alternative Models

• TJA1050: A lower-speed alternative with a maximum data rate of 1 Mbps.
• TJA1049: A similar high-speed transceiver with additional features like wake-up capability and low-power mode.
• MCP2551: An alternative from Microchip Technology offering similar functionality and compatibility with the CAN protocol.

These alternative models provide options for different application requirements and system designs.

In conclusion, the TJA1057GT/1Z is a high-speed CAN transceiver designed for automotive communication systems. It offers excellent EMC performance, low power consumption, and robustness against ESD. With its wide range of applications and availability of alternative models, it serves as a reliable solution for various automotive networking needs.