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LTM2881IY-3#PBF

Name: LTM2881IY-3#PBF
Rating: 4.7 (12 reviews)

DG ISO 2.5KV 2CH RS422 32-BBGA

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Mfr.부분 #LTM2881IY-3#PBF
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데이터시트 LTM2881IY-3#PBF DataSheet
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사양

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

개요

Description

The LTM2881IY-3#PBF is a high-speed, isolated RS-485/RS-422 transceiver designed for robust data communication in noisy environments. It integrates a linear isolation barrier with a data rate of up to 20 Mbps, enabling reliable long-distance communication while providing up to 2500 VRMS isolation voltage. The device features a wide supply voltage range, typically from 3.0V to 5.5V, making it versatile for various applications.
With its low power consumption and a built-in thermal shutdown, the LTM2881 is ideal for industrial control systems, medical devices, and remote sensing applications. It supports half-duplex operation and comes in a compact package, facilitating easy integration into space-constrained designs. The transceiver includes fault protection features, ensuring secure data transmission in harsh environments.
For designers looking to implement isolated communication, the LTM2881IY-3#PBF is a robust and efficient choice, combining ease of use with high performance.

Features

The LTM2881IY-3#PBF is a high-performance isolated RS-232 transceiver designed for robust communication in noisy environments. Key features include:
1. Isolation: Provides 2.5 kV of isolation, ensuring protection between the data and the host system.
2. Data Rate: Supports data rates up to 1 Mbps for fast, reliable communication.
3. Low Power: Consumes low power with a typical operating current of 10 mA.
4. Integrated Components: Combines both the RS-232 transceiver and isolation barrier in a single package, simplifying design.
5. Wide Operating Voltage: Operates with a supply voltage range of 3.0 V to 5.5 V.
6. Temperature Range: Rated for operation over a -40°C to +85°C temperature range, suitable for industrial applications.
7. PCB Size: Available in a compact 16-lead LGA package, allowing for space-efficient designs.
These features make the LTM2881IY-3#PBF ideal for applications requiring reliable communication in electrically noisy environments while ensuring safety and efficiency.

Package

The LTM2881IY-3#PBF is packaged in a 28-lead TSSOP (Thin Shrink Small Outline Package) with a width of 4.4 mm.

Pinout

The LTM2881IY-3#PBF is a 16-pin integrated circuit. It functions as a robust isolated RS-485 transceiver with an integrated isolated DC/DC converter, enabling data communication over long distances while maintaining electrical isolation. The key pins include:
1. VCC1: Primary supply voltage.
2. GND1: Primary ground.
3. TXD: Transmit data input.
4. RXD: Receive data output.
5. DE: Driver enable.
6. RE: Receiver enable.
7. VCC2: Secondary supply voltage (isolated).
8. GND2: Secondary ground (isolated).
9. A/B: Differential signal lines for RS-485 communication.
The device supports standard RS-485 communication protocols, making it suitable for industrial applications where isolation is essential for protecting against voltage spikes and ground loops. The integrated DC/DC converter simplifies system design by eliminating the need for separate isolation supply circuitry.

Manufacturer

The LTM2881IY-3#PBF is manufactured by Analog Devices, Inc. Analog Devices is a prominent American multinational company that specializes in designing and producing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company is known for its high-performance semiconductor solutions used in various applications, including communications, automotive, industrial, and healthcare sectors. The LTM2881 is specifically a low-power, isolated data transceiver, which exemplifies Analog Devices' focus on innovative and reliable technologies.

Application

The LTM2881IY-3#PBF is a robust isolated RS-232 transceiver used in various applications, including industrial automation, medical equipment, data acquisition systems, and communication interfaces. It provides electrical isolation, protecting sensitive components from voltage spikes and noise, making it suitable for harsh environments. It's also used in remote monitoring and control systems where signal integrity and safety are critical.

Equivalent

Equivalent products to the LTM2881IY-3#PBF include the MAX14830, ADuM3160, and ISL32477. These chips also provide isolated RS-232 or RS-485 communication with integrated isolation and are suitable for similar applications. Always verify compatibility in terms of specifications and requirements for your specific project.