LTC2877HDD#TRPBF

Product Overview

Category

LTC2877HDD#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for signal conditioning and data communication applications.

Characteristics

• The LTC2877HDD#TRPBF is a high-speed, low-power RS485/RS422 transceiver.
• It operates over a wide voltage range, making it suitable for various industrial and automotive applications.
• The device features ±60V fault protection on the bus pins, ensuring robustness in harsh environments.
• It offers high data rates up to 20Mbps, enabling fast and reliable communication.

Package

LTC2877HDD#TRPBF is available in a 16-pin plastic dual in-line package (DIP).

Essence

The essence of LTC2877HDD#TRPBF lies in its ability to provide reliable and efficient signal conditioning for RS485/RS422 communication protocols.

Packaging/Quantity

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

Specifications

• Supply Voltage: 3.3V to 5V
• Operating Temperature Range: -40°C to 85°C
• Data Rate: Up to 20Mbps
• Number of Channels: 1
• Input Logic Levels: CMOS/TTL
• Output Logic Levels: RS485/RS422
• Fault Protection: ±60V
• Package Type: 16-pin DIP

Detailed Pin Configuration

Pin | Name | Description --- | ---- | ----------- 1 | VCC | Power supply input 2 | GND | Ground 3 | DE | Driver Enable input 4 | RE | Receiver Enable input 5 | RO | Receiver Output 6 | DI | Driver Input 7 | DEB | Driver Enable Bar output 8 | REB | Receiver Enable Bar output 9 | VCC | Power supply input 10 | GND | Ground 11 | B | RS485/RS422 Bus pin 12 | A | RS485/RS422 Bus pin 13 | FLT | Fault output 14 | VCC | Power supply input 15 | GND | Ground 16 | NC | No Connection

Functional Features

• The LTC2877HDD#TRPBF provides a half-duplex RS485/RS422 transceiver solution.
• It supports both driver and receiver enable functions for flexible control.
• The device offers high-speed data transmission with low power consumption.
• It incorporates fault protection features to safeguard against voltage spikes and other electrical disturbances.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• High data rates enable fast and efficient communication.
• Robust fault protection ensures reliability in harsh environments.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited to a single channel, which may restrict certain multi-channel applications.
• Availability of alternative models with additional features or different specifications may be desired in some cases.

Working Principles

The LTC2877HDD#TRPBF operates as a transceiver for RS485/RS422 communication. It converts the CMOS/TTL logic levels of the driver input (DI) into RS485/RS422 compatible signals on the bus pins (A and B). The receiver output (RO) provides the received data in CMOS/TTL logic levels. The driver enable (DE) and receiver enable (RE) inputs control the direction of data flow. The device also incorporates fault protection circuitry to safeguard against voltage spikes and other electrical disturbances.

Detailed Application Field Plans

The LTC2877HDD#TRPBF finds applications in various fields, including:

1. Industrial Automation: It is used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial automation systems.
2. Automotive Electronics: It enables reliable data transmission in automotive applications such as vehicle diagnostics, infotainment systems, and CAN bus interfaces.
3. Building Automation: The transceiver facilitates communication between different building automation devices, including HVAC systems, lighting controls, and security systems.
4. Renewable Energy Systems: It is employed in solar inverters, wind turbines, and energy management systems for efficient data communication.
5. Medical Devices: The product is utilized in medical equipment for reliable data exchange between devices and control units.

Detailed and Complete Alternative Models

• LTC2874: Similar to LTC2877 but with dual-channel capability.
• MAX485: A popular RS485 transceiver with a wide supply voltage range.
• SN75176: An RS485 transceiver with low power consumption and high