TJA1022T,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Transceiver for automotive applications
• Characteristics:
  • High-speed CAN transceiver
  • Supports data rates up to 1 Mbps
  • Compliant with ISO 11898-2 standard
• Package: SO8 (Small Outline 8-pin package)
• Essence: Communication interface between microcontrollers and the CAN bus in automotive systems
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Supply voltage: 4.5 V to 5.5 V
• Operating temperature range: -40°C to +150°C
• Standby current: <1 µA
• Transmitting current: 100 mA (maximum)
• Receiving current: 20 mA (maximum)

Detailed Pin Configuration

The TJA1022T,118 IC has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Power supply voltage input | | 2 | GND | Ground reference | | 3 | TXD | Transmit data input | | 4 | RXD | Receive data output | | 5 | STB | Standby mode control input | | 6 | CANL | CAN low-level input/output | | 7 | CANH | CAN high-level input/output | | 8 | VREF | Reference voltage output |

Functional Features

• High-speed communication: Supports data rates up to 1 Mbps, enabling fast and reliable data transmission in automotive networks.
• ISO 11898-2 compliance: Meets the international standard for high-speed CAN communication, ensuring compatibility with other devices in the network.
• Standby mode: The STB pin allows the IC to enter a low-power standby mode when not actively transmitting or receiving data.
• Robust design: Built to withstand harsh automotive environments, with protection against electrostatic discharge (ESD) and electromagnetic interference (EMI).

Advantages

• High-speed communication capability enables efficient data transfer in automotive systems.
• ISO 11898-2 compliance ensures compatibility with other devices in the network.
• Standby mode reduces power consumption when the transceiver is idle.
• Robust design enhances reliability in challenging automotive environments.

Disadvantages

• Limited to automotive applications, may not be suitable for other industries or general-purpose use.
• Requires additional components (microcontrollers, CAN bus) for complete system implementation.

Working Principles

The TJA1022T,118 acts as a bridge between microcontrollers and the Controller Area Network (CAN) bus in automotive systems. It receives data from the microcontroller through the TXD pin and transmits it onto the CAN bus via the CANH and CANL pins. Similarly, it receives data from the CAN bus through the CANH and CANL pins and sends it to the microcontroller through the RXD pin. The transceiver operates according to the ISO 11898-2 standard, which defines the physical layer requirements for high-speed CAN communication.

Detailed Application Field Plans

The TJA1022T,118 is widely used in various automotive applications, including: - Automotive body control modules - Engine management systems - Transmission control units - Infotainment systems - Advanced driver-assistance systems (ADAS) - Electric vehicle charging systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TJA1022T,118 are: - MCP2551: A popular CAN transceiver with similar features and performance. - SN65HVD230: Another high-speed CAN transceiver suitable for automotive applications. - TLE7259-3GE: CAN transceiver with integrated wake-up and protection features.

These alternative models offer similar functionality and can be used as replacements based on specific requirements and compatibility considerations.

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