LMS1487EIM/NOPB

Product Overview

Category

The LMS1487EIM/NOPB belongs to the category of integrated circuits (ICs) and specifically falls under the family of RS-485/RS-422 transceivers.

Use

This product is commonly used for communication in industrial automation, building automation, and other applications where robust and reliable data transmission over long distances is required.

Characteristics

• High noise immunity
• Low power consumption
• Wide operating voltage range
• ESD protection
• Half-duplex communication

Package

The LMS1487EIM/NOPB is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to facilitate long-distance communication with high reliability and noise immunity.

Packaging/Quantity

It is typically supplied in reels containing a specific quantity, such as 2500 units per reel.

Specifications

• Operating Voltage: 4.75V to 5.25V
• Data Rate: Up to 10Mbps
• Operating Temperature Range: -40°C to 85°C
• Number of Pins: 8
• Compliance: ESD Protection, RoHS

Detailed Pin Configuration

1. AIN-
2. AIN+
3. GND
4. BOUT-
5. BOUT+
6. VCC
7. RO
8. RE

Functional Features

• Differential signaling for noise immunity
• Thermal shutdown protection
• Short-circuit and overvoltage protection
• Receiver output enable function

Advantages and Disadvantages

Advantages

• Robust communication over long distances
• Low power consumption
• ESD protection for enhanced reliability
• Wide operating voltage range

Disadvantages

• Limited data rate compared to some newer transceiver models
• Requires external termination resistors for optimal performance

Working Principles

The LMS1487EIM/NOPB operates on the principles of differential signaling, where it transmits and receives data using complementary signals to achieve high noise immunity and reliable communication over long distances. The device also incorporates various protection features to ensure safe operation in harsh industrial environments.

Detailed Application Field Plans

This transceiver is well-suited for use in industrial automation systems, including PLC (Programmable Logic Controller) communication networks, motor control systems, and sensor interfaces. Additionally, it finds application in building automation for HVAC (Heating, Ventilation, and Air Conditioning) control, lighting control, and access control systems.

Detailed and Complete Alternative Models

Some alternative models to the LMS1487EIM/NOPB include the MAX485, SN65HVD72, and LTC2857. These alternatives offer similar functionality and are compatible with RS-485/RS-422 communication standards.

In conclusion, the LMS1487EIM/NOPB is a reliable and efficient RS-485/RS-422 transceiver suitable for industrial and building automation applications, offering robust communication capabilities over long distances while maintaining low power consumption and high noise immunity.

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