LTC2858HMS-2#TRPBF

Product Overview

Category

The LTC2858HMS-2#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the family of transceivers.

Use

This product is primarily used for bidirectional communication between two devices over a single twisted pair cable. It enables reliable data transmission in various applications, including industrial automation, process control systems, and automotive electronics.

Characteristics

• The LTC2858HMS-2#TRPBF is a low-power, half-duplex RS485/RS422 transceiver.
• It operates with a wide supply voltage range of 3V to 5.5V, making it suitable for different power sources.
• The transceiver features a high level of electromagnetic compatibility (EMC), ensuring robust communication in noisy environments.
• It supports data rates up to 20Mbps, allowing for fast and efficient data transfer.
• The device incorporates built-in protection features such as short-circuit and thermal shutdown, enhancing its reliability and durability.

Package and Quantity

The LTC2858HMS-2#TRPBF is available in a small surface-mount package known as MSOP-10. It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 20Mbps
• Operating Temperature Range: -40°C to 85°C
• Package Type: MSOP-10

Pin Configuration

The LTC2858HMS-2#TRPBF has the following pin configuration:

1. DE - Driver Output Enable
2. RE - Receiver Output Enable
3. A - Non-Inverting Driver Input / Receiver Output
4. B - Inverting Driver Input / Receiver Output
5. GND - Ground
6. VCC - Supply Voltage
7. Y - Non-Inverting Receiver Input
8. Z - Inverting Receiver Input
9. RO - Receiver Output
10. DI - Driver Input

Functional Features

• Half-duplex communication: The LTC2858HMS-2#TRPBF allows bidirectional data transmission on a single twisted pair cable.
• High-speed operation: It supports data rates up to 20Mbps, enabling fast and efficient communication.
• Built-in protection: The transceiver incorporates short-circuit and thermal shutdown protection, ensuring reliable operation even in challenging conditions.
• Low power consumption: The device is designed to minimize power consumption, making it suitable for battery-powered applications.
• Wide supply voltage range: It can operate with a supply voltage range of 3V to 5.5V, providing flexibility in various system designs.

Advantages and Disadvantages

Advantages

• Robust communication in noisy environments due to high EMC compatibility.
• Fast data transfer rates up to 20Mbps.
• Built-in protection features enhance reliability.
• Low power consumption for energy-efficient operation.
• Wide supply voltage range allows for versatile application.

Disadvantages

• Limited to half-duplex communication only.
• Requires additional external components for complete system integration.

Working Principles

The LTC2858HMS-2#TRPBF operates based on the RS485/RS422 standard. It utilizes differential signaling to transmit data over a single twisted pair cable. The transceiver converts the logic-level signals from the driver input into balanced differential signals suitable for transmission. On the receiving end, it converts the received differential signals back into logic-level signals.

The DE (Driver Output Enable) and RE (Receiver Output Enable) pins control the direction of data flow. When DE is active and RE is inactive, the transceiver operates in transmit mode, allowing data to be sent. Conversely, when DE is inactive and RE is active, the transceiver operates in receive mode, enabling data reception.

Detailed Application Field Plans

The LTC2858HMS-2#TRPBF finds applications in various fields, including:

1. Industrial Automation: It enables reliable communication between different automation devices, facilitating efficient control and monitoring systems.
2. Process Control Systems: The transceiver ensures accurate and timely data transmission in process control applications, enhancing system performance and safety.
3. Automotive Electronics: It is used in automotive networks for communication between electronic control units (ECUs), supporting functions such as vehicle diagnostics and sensor data exchange.

Detailed Alternative Models

1. MAX485ESA+: This IC offers similar functionality to the LTC2858HMS-2#TRPBF and is also compatible with RS485/RS422 standards. It comes in an SOIC-8 package.
2. SN65HVD485EDR: Another alternative, this transceiver supports data rates up to 20Mbps and features a wide supply voltage range. It is available in an SOIC-