SN65HVD77DGKR

Product Overview

Category: Integrated Circuit (IC)

Use: SN65HVD77DGKR is a high-speed CAN transceiver designed for use in automotive and industrial applications. It provides a physical interface between the CAN controller of a microcontroller and the bus lines of a CAN network.

Characteristics: - High-speed data rates up to 1 Mbps - Low power consumption - Robust communication in noisy environments - Supports extended temperature range (-40°C to +125°C) - ESD protection on bus pins - Fail-safe features for error detection and fault confinement

Package: SN65HVD77DGKR is available in a small form factor package, known as VSSOP-8. This package offers space-saving advantages and ease of integration into compact designs.

Essence: The essence of SN65HVD77DGKR lies in its ability to facilitate reliable and efficient communication over a Controller Area Network (CAN) bus, enabling seamless data exchange between various nodes in an automotive or industrial system.

Packaging/Quantity: SN65HVD77DGKR is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Data Rate: Up to 1 Mbps
• Quiescent Current: 10 µA (typical)
• Transmitting Output Voltage: 2.4V (minimum), 3.5V (maximum)
• Receiving Input Voltage: -12V (minimum), 12V (maximum)
• ESD Protection: ±16 kV (Human Body Model)

Pin Configuration

The SN65HVD77DGKR IC has the following pin configuration:

Pin 1: GND Pin 2: CANH (CAN Bus High) Pin 3: VCC Pin 4: NC (No Connection) Pin 5: NC (No Connection) Pin 6: NC (No Connection) Pin 7: CANL (CAN Bus Low) Pin 8: GND

Functional Features

1. High-Speed Communication: SN65HVD77DGKR supports high-speed data rates up to 1 Mbps, enabling fast and efficient data transmission over the CAN bus.

2. Robustness in Noisy Environments: The transceiver incorporates features like differential signaling and ESD protection, ensuring reliable communication even in harsh and noisy environments.

3. Fail-Safe Operation: SN65HVD77DGKR implements fail-safe features that detect errors and confine faults, enhancing the overall reliability of the CAN network.

4. Wide Temperature Range: With an extended operating temperature range of -40°C to +125°C, the transceiver is suitable for use in automotive and industrial applications that require operation in extreme temperature conditions.

Advantages and Disadvantages

Advantages: - High-speed data rates enable quick data transfer. - Robust design ensures reliable communication in noisy environments. - Fail-safe features enhance system reliability. - Wide temperature range allows for versatile application usage.

Disadvantages: - Limited pin configuration options due to the small form factor package. - May require additional external components for certain applications.

Working Principles

SN65HVD77DGKR operates based on the principles of the Controller Area Network (CAN) protocol. It acts as a physical interface between the CAN controller and the bus lines of a CAN network. The transceiver converts the digital signals from the controller into differential voltage signals suitable for transmission over the CAN bus. It also receives differential voltage signals from the bus and converts them back into digital signals for the controller to process.

The transceiver incorporates various features like voltage level shifting, noise filtering, and fault detection to ensure reliable communication between nodes in the CAN network. It follows the CAN protocol specifications for bit timing, arbitration, error detection, and fault confinement.

Detailed Application Field Plans

SN65HVD77DGKR finds extensive application in the following fields:

1. Automotive: Used in automotive systems for communication between various electronic control units (ECUs), such as engine management systems, transmission control modules, and body control modules.

2. Industrial Automation: Employed in industrial automation systems for interconnecting sensors, actuators, and controllers, enabling efficient data exchange and control.

3. Medical Devices: Integrated into medical devices that require reliable and robust communication, such as patient monitoring systems and diagnostic equipment.

4. Home Automation: Utilized in home automation systems for connecting smart devices, enabling seamless control and monitoring of various household appliances.

Detailed and Complete Alternative Models

1. MCP2551: A popular alternative CAN transceiver with similar features and performance characteristics.
2. TJA1050: Another widely used CAN transceiver offering high-speed communication