Texas Instruments
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
SN65HVD485EDGK
Ver Detalle Hojas de datos

SN65HVD485EDGK

Product Overview

Category

The SN65HVD485EDGK belongs to the category of integrated circuits (ICs) specifically designed for use in industrial applications.

Use

This IC is commonly used for communication purposes in industrial automation systems, such as fieldbus networks and serial data transmission.

Characteristics

  • Robustness: The SN65HVD485EDGK is built to withstand harsh industrial environments, offering high immunity to noise and voltage fluctuations.
  • High-speed data transmission: It supports data rates up to 5 Mbps, enabling efficient and reliable communication.
  • Low power consumption: This IC is designed to minimize power consumption, making it suitable for battery-powered devices.
  • Wide operating voltage range: It can operate within a wide voltage range, typically from 3.3V to 5V.
  • ESD protection: The SN65HVD485EDGK provides built-in electrostatic discharge (ESD) protection, ensuring the safety of the circuitry.

Package

The SN65HVD485EDGK is available in a small form-factor package known as MSOP-8 (Mini Small Outline Package), which allows for easy integration into compact designs.

Essence

The essence of the SN65HVD485EDGK lies in its ability to facilitate reliable and efficient communication in industrial automation systems, ensuring seamless data transmission between various devices.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing 2500 units or each tube containing 90 units.

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
  • Package Type: MSOP-8

Detailed Pin Configuration

  1. VCC: Power supply voltage input
  2. GND: Ground reference
  3. RO: Receiver output
  4. RE: Receiver enable input
  5. DE: Driver enable input
  6. DI: Driver input
  7. D: Data input/output
  8. VREF: Reference voltage for receiver input threshold

Functional Features

  • Half-duplex communication: The SN65HVD485EDGK supports half-duplex communication, allowing data transmission in both directions but not simultaneously.
  • Differential signaling: It utilizes differential signaling to improve noise immunity and signal integrity, ensuring reliable data transfer.
  • Fail-safe receiver: The IC incorporates a fail-safe receiver that guarantees a high-level output when the bus is idle or open, preventing false data interpretation.

Advantages and Disadvantages

Advantages

  • Robustness in harsh industrial environments
  • High-speed data transmission capability
  • Low power consumption
  • Wide operating voltage range
  • Built-in ESD protection

Disadvantages

  • Limited to half-duplex communication
  • Requires external components for complete functionality

Working Principles

The SN65HVD485EDGK operates based on the principles of differential signaling. It receives differential signals from the bus and converts them into digital data. The driver section of the IC converts digital data into differential signals for transmission over the bus. This bidirectional communication allows devices connected to the bus to exchange information effectively.

Detailed Application Field Plans

The SN65HVD485EDGK finds extensive application in various industrial automation systems, including: - Programmable Logic Controllers (PLCs) - Supervisory Control and Data Acquisition (SCADA) systems - Distributed Control Systems (DCS) - Industrial sensors and actuators - Motor control systems - Building automation systems

Detailed and Complete Alternative Models

  1. MAX485: A popular alternative to the SN65HVD485EDGK, offering similar functionality and performance.
  2. LTC485: Another alternative IC with differential signaling capabilities suitable for industrial applications.
  3. SN75176: A cost-effective option for half-duplex communication in industrial environments.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

Word count: 610 words

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN65HVD485EDGK en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN65HVD485EDGK in technical solutions:

  1. Q: What is SN65HVD485EDGK? A: SN65HVD485EDGK is a transceiver IC (Integrated Circuit) designed for use in RS-485 communication networks.

  2. Q: What is RS-485 communication? A: RS-485 is a standard for serial communication that allows multiple devices to communicate over long distances using balanced transmission lines.

  3. Q: What are the key features of SN65HVD485EDGK? A: Some key features of SN65HVD485EDGK include low power consumption, wide operating voltage range, high data rates, and built-in protection against bus faults.

  4. Q: How does SN65HVD485EDGK handle bus faults? A: SN65HVD485EDGK has built-in protection features like thermal shutdown, short-circuit protection, and receiver failsafe mode to handle bus faults and prevent damage to the IC.

  5. Q: Can SN65HVD485EDGK be used in half-duplex or full-duplex communication? A: Yes, SN65HVD485EDGK can be used in both half-duplex and full-duplex communication modes, depending on the configuration of the network.

  6. Q: What is the maximum data rate supported by SN65HVD485EDGK? A: SN65HVD485EDGK supports data rates up to 20 Mbps, making it suitable for high-speed communication applications.

  7. Q: Is SN65HVD485EDGK compatible with different supply voltages? A: Yes, SN65HVD485EDGK is compatible with a wide range of supply voltages, typically ranging from 3.3V to 5V.

  8. Q: Can SN65HVD485EDGK be used in industrial environments? A: Yes, SN65HVD485EDGK is designed to operate reliably in harsh industrial environments, making it suitable for applications like factory automation and process control.

  9. Q: Does SN65HVD485EDGK support hot-swapping of devices on the bus? A: Yes, SN65HVD485EDGK supports hot-swapping, allowing devices to be added or removed from the bus without disrupting communication.

  10. Q: Are there any application notes or reference designs available for SN65HVD485EDGK? A: Yes, Texas Instruments provides application notes and reference designs that can help users in implementing SN65HVD485EDGK in their technical solutions.

Please note that these answers are general and may vary depending on specific requirements and use cases. It's always recommended to refer to the datasheet and documentation provided by the manufacturer for detailed information.