TJA1048TK,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Transceiver for Controller Area Network (CAN) bus communication
• Characteristics:
  • High-speed data transmission
  • Robustness and reliability in harsh environments
  • Low power consumption
  • Small package size
• Package: SOT96-1 (SO8)
• Essence: Facilitates communication between microcontrollers in automotive applications
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply voltage: 4.5V to 5.5V
• Operating temperature range: -40°C to +125°C
• Data rate: Up to 1 Mbps
• Number of channels: 1
• Transmitting and receiving logic levels: Compatible with 3.3V and 5V systems
• ESD protection: ±8 kV (HBM)

Detailed Pin Configuration

The TJA1048TK,118 has the following pin configuration:

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

Functional Features

• Supports both CAN 2.0A and CAN 2.0B protocols
• Implements differential signaling for noise immunity
• Provides bus wake-up capability
• Supports remote frame request functionality
• Offers thermal shutdown protection
• Enables error detection and reporting

Advantages and Disadvantages

Advantages: - High-speed data transmission enables efficient communication - Robustness and reliability ensure stable operation in challenging environments - Low power consumption contributes to energy efficiency - Small package size allows for space-saving designs

Disadvantages: - Limited to a single channel, restricting simultaneous communication on multiple buses - Requires external components for complete CAN bus implementation

Working Principles

The TJA1048TK,118 is a transceiver that facilitates communication between microcontrollers using the Controller Area Network (CAN) bus protocol. It converts the digital signals from the microcontroller into differential voltage signals suitable for transmission over the CAN bus. Similarly, it receives differential voltage signals from the bus and converts them into digital signals for the microcontroller to process.

The transceiver implements differential signaling, where the CANL and CANH pins carry complementary voltages. This allows for noise immunity and reliable data transmission over long distances. The transceiver also incorporates various protection mechanisms, such as thermal shutdown and ESD protection, to ensure safe operation in automotive applications.

Detailed Application Field Plans

The TJA1048TK,118 is primarily used in automotive applications where reliable communication between microcontrollers is essential. Some specific application areas include:

1. Vehicle diagnostics: Enables communication between onboard diagnostic systems and microcontrollers for fault detection and troubleshooting.
2. Body control modules: Facilitates communication between different electronic control units responsible for functions like lighting, door locks, and climate control.
3. Powertrain systems: Supports communication between engine control units, transmission control units, and other components for efficient powertrain management.
4. Advanced driver-assistance systems (ADAS): Enables communication between ADAS components, such as radar sensors and cameras, for real-time data exchange.

Detailed and Complete Alternative Models

1. MCP2551: A popular alternative with similar features and performance characteristics.
2. SN65HVD230: Offers enhanced ESD protection and wider operating temperature range.
3. PCA82C250: Provides additional fault-tolerant features for increased reliability.

These alternative models can be considered based on specific project requirements and compatibility with existing systems.

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