SN65HVD1781AQDRQ1

Product Overview

Category

The SN65HVD1781AQDRQ1 belongs to the category of integrated circuits (ICs) specifically designed for automotive applications.

Use

This product is commonly used in automotive systems for transmitting and receiving data over a Controller Area Network (CAN) bus. It enables reliable communication between various electronic control units (ECUs) within a vehicle.

Characteristics

• Robustness: The SN65HVD1781AQDRQ1 is designed to withstand harsh automotive environments, including temperature variations, electromagnetic interference, and voltage transients.
• Low Power Consumption: This IC is optimized for low power consumption, making it suitable for battery-powered automotive applications.
• High-Speed Communication: It supports high-speed data transmission rates up to 1 Mbps, ensuring efficient and fast communication between ECUs.
• ESD Protection: The device incorporates built-in electrostatic discharge (ESD) protection, safeguarding against potential damage during handling and operation.

Package

The SN65HVD1781AQDRQ1 is available in a small-outline package (SOIC) with 8 pins. This package offers ease of integration into existing circuit boards and provides mechanical stability.

Essence

The essence of the SN65HVD1781AQDRQ1 lies in its ability to facilitate reliable and efficient communication between different automotive ECUs through the CAN bus.

Packaging/Quantity

This product is typically supplied in reels or tubes, with a standard quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 3.3V to 5V
• Operating Temperature Range: -40°C to +125°C
• Data Rate: Up to 1 Mbps
• Transceiver Type: Half-duplex
• ESD Protection: ±16 kV (Human Body Model)
• Quiescent Current: 5 µA (Typical)

Detailed Pin Configuration

The SN65HVD1781AQDRQ1 features the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Power Supply Voltage | | 2 | GND | Ground | | 3 | CANL | CAN Bus Low Signal | | 4 | CANH | CAN Bus High Signal | | 5 | RS | Receiver Input Threshold Selection | | 6 | VREF | Reference Voltage Output | | 7 | TXD | Transmitter Data Input | | 8 | RXD | Receiver Data Output |

Functional Features

• Bus Fault Protection: The SN65HVD1781AQDRQ1 incorporates various protection mechanisms to detect and handle bus faults, such as short circuits and voltage transients.
• Wake-Up Capability: It supports wake-up functionality, allowing the device to enter a low-power mode when not actively transmitting or receiving data. This feature helps conserve energy in automotive systems.
• Error Detection and Reporting: The IC includes error detection and reporting mechanisms, enabling efficient monitoring of the communication status and identification of potential issues.

Advantages and Disadvantages

Advantages

• Robustness: The SN65HVD1781AQDRQ1 is designed to withstand challenging automotive environments, ensuring reliable operation.
• Low Power Consumption: Its optimized power consumption makes it suitable for battery-powered applications, contributing to energy efficiency.
• High-Speed Communication: The IC supports high-speed data transmission rates, facilitating fast and efficient communication between ECUs.
• ESD Protection: Built-in ESD protection safeguards against potential damage during handling and operation.

Disadvantages

• Half-Duplex Operation: As a half-duplex transceiver, the SN65HVD1781AQDRQ1 can only transmit or receive data at a given time, which may limit simultaneous bidirectional communication.

Working Principles

The SN65HVD1781AQDRQ1 operates based on the principles of differential signaling. It transmits and receives data using a balanced pair of signals (CANL and CANH) to ensure robustness against noise and interference. The device employs various techniques, such as voltage level shifting and bus fault detection, to enable reliable and efficient communication over the CAN bus.

Detailed Application Field Plans

The SN65HVD1781AQDRQ1 is widely used in automotive applications, including but not limited to:

• Engine Control Units (ECUs)
• Transmission Control Units (TCUs)
• Body Control Modules (BCMs)
• Anti-lock Braking Systems (ABS)
• Airbag Control Units (ACUs)
• Instrument Clusters
• Infotainment Systems

Its robustness, low power consumption, and high-speed communication capabilities make it suitable for various automotive systems requiring reliable data transmission.

Detailed and Complete Alternative Models

• MCP2551: This IC