ISO7740DBQR

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ISO7740DBQR

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DGTL ISOLTR 3KV 4CH GP 16-SSOP

  • 製造商德州儀器

  • 製造商部分 #ISO7740DBQR

  • 有存貨4441

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規格

屬性 價值
Part Status Active
Technology Capacitive Coupling
Type General Purpose
Isolated Power No
Number of Channels 4
Inputs - Side 1/Side 2 4/0
Channel Type Unidirectional
Voltage - Isolation 3000Vrms
Common Mode Transient Immunity (Min) 85kV/µs
Data Rate 100Mbps
Propagation Delay tpLH / tpHL (Max) 16ns, 16ns
Pulse Width Distortion (Max) 4.9ns
Rise / Fall Time (Typ) 2.4ns, 2.4ns
Voltage - Supply 2.25V ~ 5.5V
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount
Package / Case 16-SSOP (0.154", 3.90mm Width)
Supplier Device Package 16-SSOP
Base Product Number ISO7740

概述

Description

The ISO7740DBQR refers to a specific model within the Texas Instruments family of digital isolators. This model is part of the ISO77xx series, known for providing robust galvanic isolation for digital signals. These isolators are commonly used in applications that require noise immunity, signal integrity, and safety, such as industrial automation, medical devices, and power systems.
The "ISO7740" indicates that this device features four channels of isolation. The "DBQ" part of the model number specifies the package type, which is typically a small outline integrated circuit (SOIC) package, suitable for surface mounting on printed circuit boards. The "R" at the end usually denotes that the product is supplied on a reel, which is a common packaging method for automatic insertion during manufacturing.
Key features of the ISO7740DBQR include high-speed operation, low power consumption, and a high isolation voltage rating, often up to several kilovolts. This makes it suitable for protecting low-voltage circuits from high-voltage spikes and ensuring reliable communication across isolation barriers.

Equivalent

The ISO7740DBQR is a digital isolator chip by Texas Instruments, offering four channels with a high level of electromagnetic immunity and low emissions. Equivalent products from other manufacturers include the ADuM1400 series by Analog Devices, the Si8640 series by Silicon Labs, and the MAX14430 series by Maxim Integrated. These alternatives offer similar channel configurations and isolation capabilities, catering to applications requiring electrical isolation in communications, power supplies, and industrial systems. Always verify specific parameters to ensure compatibility.

Features

The ISO7740DBQR is a digital isolator designed for signal isolation in a variety of applications. Key features include:
1. Channel Configuration: It offers four channels, all in the same direction, providing flexibility in signal routing.

2. Isolation Voltage: The device provides a high isolation voltage, typically 5000 VRMS, which ensures robust protection against electrical noise and fault conditions.
3. High Data Rate: It supports data rates up to 100 Mbps, making it suitable for high-speed communication needs.
4. Wide Supply Range: The isolator operates over a wide supply voltage range, typically from 2.25 V to 5.5 V, accommodating different system requirements.
5. Low Propagation Delay: It features low propagation delays, usually around 10 ns, which is crucial for time-sensitive applications.
6. Temperature Range: The device can operate in a wide temperature range, typically from -40°C to 125°C, ensuring reliability in harsh environments.
7. Robust Design: It includes fail-safe features and is designed to withstand high levels of electromagnetic interference.
These features make the ISO7740DBQR suitable for industrial, automotive, and communication applications requiring reliable isolation and high-speed data transfer.

Pinout

The ISO7740DBQR is a digital isolator from Texas Instruments with the following key features:
- Pin Count: It is an 8-pin device.
- Function: The ISO7740DBQR provides four channels of digital isolation. It is designed to protect low-voltage circuits from high-voltage surges and noise, enabling reliable communication between circuits operating at different voltage levels. It offers bi-directional data transmission with high-speed capability and galvanic isolation.
This isolator is commonly used in industrial applications, power electronics, and systems requiring robust isolation to maintain signal integrity and protect sensitive components.

Manufacturer

The ISO7740DBQR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is known for its development, manufacturing, and sale of analog and embedded processing chips, which are integral components in a wide range of electronic devices. The company is one of the largest semiconductor manufacturers in the world and has a strong focus on innovation and technology development. TI’s products are used in various applications, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. The ISO7740DBQR, specifically, falls into their line of digital isolators, designed to ensure signal integrity and reliability in electronic systems by providing protection and isolation between circuits.

Application

The ISO7740DBQR is a Texas Instruments digital isolator used primarily for galvanic isolation in electronics. It’s suitable for various applications, including industrial automation, power supply systems, and motor control. The device ensures signal integrity and protection by isolating different parts of a system, helping prevent noise, voltage spikes, and ground loops. It's also used in medical equipment where patient safety and data integrity are critical. Furthermore, it finds applications in renewable energy systems and electric vehicles, where robust isolation is needed to manage high voltages and ensure system stability. Its compact size and reliability make it ideal across these diverse fields.

Package

The ISO7740DBQR is a digital isolator from Texas Instruments, featuring a small-outline package known as SSOP (Shrink Small Outline Package) with a body width of 3.9 mm. The "DBQ" indicates the specific SSOP variant, and the "R" at the end signifies that the part comes in a reel.

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