LTM2881IY-3#PBF

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LTM2881IY-3#PBF

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Especificações

Atributo Valor
Series µModule®
Part Status Active
Technology Magnetic Coupling
Type RS422, RS485
Isolated Power Yes
Number of Channels 2
Inputs - Side 1 / Side 2 1/1
Channel Type Unidirectional
Voltage - Isolation 2500Vrms
Common Mode Transient Immunity (Min) 30kV/µs
Data Rate 20Mbps
Voltage - Supply 3V ~ 3.6V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 32-BBGA Module
Supplier Device Package 32-BGA (15x11.25)
Base Product Number LTM2881

Visão Geral

Description

The LTM2881IY-3#PBF is an isolated RS485/RS422 transceiver module with an integrated DC/DC converter, designed by Analog Devices (formerly Linear Technology). It provides a complete, isolated data communication and power solution for RS485 and RS422 applications. The module offers 2500VRMS of galvanic isolation between the logic level interface and the bus interface. This isolation helps in protecting the communication system from ground loops and ensures signal integrity in electrically noisy environments.
Key features include a wide operating voltage range, high data rates (up to 20Mbps), and low electromagnetic interference (EMI). The integrated DC/DC converter provides up to 2W of isolated power, eliminating the need for a separate isolated power supply for the bus side.
Additionally, the LTM2881IY-3#PBF includes fail-safe features such as thermal shutdown and current limiting to protect against fault conditions. Its compact, surface-mount package makes it suitable for applications in industrial, automotive, and instrumentation systems where robust communication and power isolation are critical.

Equivalent

The LTM2881IY-3#PBF is an isolated RS485/RS422 transceiver with power from Analog Devices. Equivalent products may include:
1. Analog Devices ADM2587E: An isolated RS-485 transceiver with integrated DC-DC converter.
2. Texas Instruments ISO3086: An isolated RS-485/RS-422 transceiver.
3. Texas Instruments ISOW7841: An RS-485 transceiver with integrated isolated power.
4. Maxim Integrated MAX14853: Isolated RS-485/RS-422 transceiver.
Ensure to compare specifications like isolation voltage, data rate, and power requirements for compatibility.

Features

The LTM2881IY-3#PBF is an isolated RS485/RS422 transceiver module from Analog Devices. It provides robust electrical isolation and data communication over long distances. Key features include:
1. Isolation: Offers 2500VRMS isolation for safety and signal integrity between systems.
2. Integrated Power: Includes an isolated DC/DC converter for powering remote nodes.
3. Data Rate: Supports up to 20Mbps data rates, suitable for high-speed applications.
4. ESD Protection: Provides ±15kV ESD protection on communication lines.
5. Low EMI: Designed to minimize electromagnetic interference.
6. Wide Operating Range: Functions over a temperature range of -40°C to +85°C.
7. Fail-safe Operation: Includes features to maintain operation during faults.
8. Compact Module: Comes in a compact BGA package for easy integration.
These features make it suitable for industrial, medical, and instrumentation applications requiring reliable, isolated communication.

Pinout

The LTM2881IY-3#PBF is an isolated RS485/RS422 transceiver module. It features a total of 24 pins.
Here's a brief overview of its main functions:
1. Isolation: Provides 2500VRMS isolation between the logic level interface and the transceiver interface.
2. RS485/RS422 Communication: Supports both full-duplex and half-duplex communication modes with up to 20 Mbps data rate.
3. Integrated DC/DC Converter: Powers the isolated transceiver side, eliminating the need for an external isolated power supply.
4. Protection: Offers ±15kV ESD protection on the transceiver bus pins.
5. Low Power Consumption: Features low power modes to reduce power consumption when not actively transmitting.
This integrated module is suitable for robust communication in industrial environments, providing reliable data transmission over long distances with isolation to protect sensitive components.

Manufacturer

The LTM2881IY-3#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in various electronic equipment. The company serves a wide range of markets including industrial, automotive, communications, healthcare, and consumer electronics. With a focus on innovation and quality, Analog Devices is known for providing high-performance signal processing solutions that enhance the capabilities of electronic devices across different sectors.

Application

The LTM2881IY-3#PBF is an isolated RS485/RS422 transceiver module designed for reliable data communication in various applications. Its key application areas include industrial automation, where it facilitates secure communication between devices in electrically noisy environments. It's also used in process control systems to ensure accurate data transfer across isolated components. Additionally, the module is suitable for instrumentation and data acquisition systems, providing robust performance in environments that demand high isolation levels. The isolation feature is beneficial in medical equipment to protect sensitive data paths from high voltage transients. Overall, the LTM2881IY-3#PBF is ideal for applications requiring secure, isolated communication over long distances or in challenging electrical environments.

Package

The LTM2881IY-3#PBF is a μModule (micro-module) isolator with a DC/DC converter. It is designed for isolated communication interfaces and power applications. This specific package type is a surface-mount BGA (Ball Grid Array) package, which integrates both signal and power isolation in a compact form factor, suitable for minimizing PCB space.

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