UJA1078ATW/3V3/WD

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Automotive Communication IC
• Characteristics:
  • Low-power consumption
  • High-speed communication
  • Robustness against electromagnetic interference
• Package: TSSOP-14
• Essence: Transceiver for automotive communication networks
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +125°C
• Data Rate: Up to 1 Mbps
• Interface: SPI (Serial Peripheral Interface)
• Protection Features:
  • Overvoltage protection
  • Undervoltage protection
  • Thermal shutdown protection

Detailed Pin Configuration

The UJA1078ATW/3V3/WD has a total of 14 pins in the TSSOP package. The pin configuration is as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VBAT | Battery supply voltage | | 2 | GND | Ground | | 3 | STB | Standby control input | | 4 | WAKE | Wake-up control input | | 5 | LIN | LIN bus interface | | 6 | TXD | Transmit data | | 7 | RXD | Receive data | | 8 | VIO | IO supply voltage | | 9 | VDD | Digital supply voltage | | 10 | CANH | CAN high-level input/output | | 11 | CANL | CAN low-level input/output | | 12 | CANH2 | Second CAN high-level input/output | | 13 | CANL2 | Second CAN low-level input/output | | 14 | VBAT2 | Second battery supply voltage |

Functional Features

• Integrated transceiver for LIN and CAN communication protocols
• Supports both single-wire LIN and two-wire CAN interfaces
• High-speed communication up to 1 Mbps
• Low-power mode for reduced energy consumption during standby
• Built-in protection features for reliable operation in automotive environments

Advantages and Disadvantages

Advantages

• Robustness against electromagnetic interference ensures reliable communication in automotive applications.
• Low-power consumption helps to optimize energy usage in vehicles.
• High-speed communication enables efficient data transfer between different vehicle systems.

Disadvantages

• Limited to automotive applications, not suitable for other industries.
• Requires knowledge of LIN and CAN protocols for proper integration and usage.

Working Principles

The UJA1078ATW/3V3/WD is designed to facilitate communication between various electronic control units (ECUs) in automotive systems. It supports both LIN and CAN protocols, allowing seamless integration into existing networks. The transceiver operates by converting digital signals from the microcontroller into appropriate LIN or CAN bus signals for transmission. It also receives LIN or CAN bus signals and converts them back into digital signals for the microcontroller to process.

Detailed Application Field Plans

The UJA1078ATW/3V3/WD is widely used in automotive applications where reliable communication between ECUs is crucial. Some common application fields include: - Body control modules - Powertrain systems - Infotainment systems - Advanced driver-assistance systems (ADAS) - Lighting control systems

Detailed and Complete Alternative Models

• UJA1076ATW/3V3/WD: Similar to UJA1078ATW/3V3/WD but without the second CAN interface.
• UJA1079ATW/3V3/WD: Similar to UJA1078ATW/3V3/WD but with additional features like fault detection and diagnosis.

(Note: The above alternative models are from the same UJA10xx series and share similar characteristics and pin configurations.)

This entry provides an overview of the UJA1078ATW/3V3/WD, an automotive communication IC. It includes basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.