SN65HVD1786P

Product Overview

Category

The SN65HVD1786P belongs to the category of integrated circuits (ICs) specifically designed for use in industrial applications.

Use

This product is commonly used for communication purposes in industrial automation systems, such as fieldbus networks and process control systems.

Characteristics

• Robustness: The SN65HVD1786P is built to withstand harsh industrial environments, offering high immunity to noise and voltage transients.
• High-Speed Communication: It supports data rates up to 5 Mbps, enabling fast and reliable communication between devices.
• Low Power Consumption: This IC is designed to operate with low power consumption, making it suitable for battery-powered applications.
• ESD Protection: The device provides built-in electrostatic discharge (ESD) protection, ensuring the safety of the connected devices.

Package

The SN65HVD1786P is available in a small outline package (SOP), which allows for easy integration onto printed circuit boards (PCBs).

Essence

The essence of this product lies in its ability to facilitate robust and efficient communication in industrial settings, ensuring reliable data transmission between devices.

Packaging/Quantity

The SN65HVD1786P is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 3.3V to 5V
• Data Rate: Up to 5 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Interface Type: RS-485

Detailed Pin Configuration

1. VCC: Power supply pin
2. A: Non-inverting data line
3. B: Inverting data line
4. GND: Ground pin
5. DE: Driver enable pin
6. RE: Receiver enable pin
7. RO: Receiver output pin
8. DI: Driver input pin

Functional Features

• Half-Duplex Communication: The SN65HVD1786P supports half-duplex communication, allowing devices to transmit and receive data on a shared communication line.
• Driver and Receiver Enable Control: The DE and RE pins provide control over the driver and receiver functions, enabling efficient data transmission.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Robustness in Industrial Environments
• High-Speed Communication Capability
• Low Power Consumption
• Built-in ESD Protection

Disadvantages

• Limited to Half-Duplex Communication
• Requires External Components for Complete Functionality

Working Principles

The SN65HVD1786P operates based on the RS-485 standard, which uses differential signaling for noise immunity. It employs a driver circuit to convert logic-level signals into balanced differential signals, ensuring reliable transmission over long distances. The receiver circuit then converts the received differential signals back into logic-level signals for further processing.

Detailed Application Field Plans

The SN65HVD1786P finds applications in various industrial fields, including: 1. Factory Automation Systems 2. Building Automation Systems 3. Process Control Systems 4. Energy Management Systems 5. Industrial Robotics

Detailed and Complete Alternative Models

1. MAX485 - Maxim Integrated
2. LTC2862 - Analog Devices
3. ST485 - STMicroelectronics
4. SN75176 - Texas Instruments
5. ADM2483 - Analog Devices

These alternative models offer similar functionality and can be considered as alternatives to the SN65HVD1786P depending on specific application requirements.

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