LTC491CN#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Communication and Networking
• Characteristics: Low Power RS485/RS422 Transceiver
• Package: 8-Pin PDIP (Plastic Dual In-Line Package)
• Essence: High-speed, low-power transceiver for balanced communication lines
• Packaging/Quantity: Tube packaging, available in quantities of 25 or 100 units

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Operating Temperature Range: -40°C to 85°C
• Data Rate: Up to 20Mbps
• Number of Drivers/Receivers: 1/1
• Receiver Input Sensitivity: ±200mV
• Driver Output Voltage Swing: ±2V
• Quiescent Current: 300µA
• Shutdown Current: 10µA

Detailed Pin Configuration

The LTC491CN#PBF has a total of 8 pins:

1. DE (Driver Enable): Controls the driver output
2. RE (Receiver Enable): Controls the receiver output
3. A (Non-Inverting Driver Output / Non-Inverting Receiver Input)
4. B (Inverting Driver Output / Inverting Receiver Input)
5. GND (Ground)
6. VCC (Supply Voltage)
7. Y (Inverting Receiver Output)
8. Z (Non-Inverting Receiver Output)

Functional Features

• Low power consumption makes it suitable for battery-powered applications
• Wide supply voltage range allows for flexibility in various systems
• High data rate enables fast and efficient communication
• Built-in driver and receiver enable/disable functions for control
• Robust design ensures reliable operation in harsh environments
• ESD protection on bus pins enhances reliability

Advantages and Disadvantages

Advantages: - Low power consumption - High data rate - Wide supply voltage range - Built-in driver and receiver enable/disable functions - Robust design with ESD protection

Disadvantages: - Limited number of drivers/receivers (1/1) - Temperature range limited to -40°C to 85°C

Working Principles

The LTC491CN#PBF is a low-power RS485/RS422 transceiver designed for balanced communication lines. It uses differential signaling to transmit data, which provides noise immunity and allows for long-distance communication. The driver amplifies the digital signals and sends them over the communication line, while the receiver receives the signals and converts them back into digital form.

Detailed Application Field Plans

The LTC491CN#PBF is widely used in various applications, including:

1. Industrial Automation: Used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial control systems.
2. Building Automation: Enables communication between different building automation devices, such as HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting controls, and security systems.
3. Automotive Systems: Used in automotive networks for communication between different electronic modules, such as engine control units, body control modules, and infotainment systems.
4. Telecommunications: Enables reliable communication between network equipment, such as routers, switches, and modems.
5. Renewable Energy Systems: Used for communication between solar inverters, wind turbines, and energy management systems.

Detailed and Complete Alternative Models

1. MAX485CPA+: Low Power RS485/RS422 Transceiver, 8-Pin PDIP Package
2. SN75176BP: Differential Bus Transceiver, 8-Pin PDIP Package
3. ADM485ARZ: Half-Duplex RS485 Transceiver, 8-Pin SOIC (Small Outline Integrated Circuit) Package
4. SP3485EN-L/TR: Low Power Half-Duplex RS485 Transceiver, 8-Pin NSOIC (Narrow Small Outline Integrated Circuit) Package

These alternative models offer similar functionality and can be used as replacements for the LTC491CN#PBF in various applications.

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