ISO7741FDW

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ISO7741FDW

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DGTL ISOLTR 5KV 4CH GP 16-SOIC

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Part Status Last Time Buy
Technology Capacitive Coupling
Type General Purpose
Isolated Power No
Number of Channels 4
Inputs - Side 1/Side 2 3/1
Channel Type Unidirectional
Voltage - Isolation 5000Vrms
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-SOIC (0.295", 7.50mm Width)
Supplier Device Package 16-SOIC
Base Product Number ISO7741

Tổng quan

Description

The ISO7741FDW is a specific model of a high-performance, quadruple-channel digital isolator produced by Texas Instruments. It is designed to provide electrical isolation and signal integrity in communication interfaces, making it ideal for applications requiring high noise immunity and robust isolation, such as industrial automation, medical equipment, and power systems.
This isolator features a wide supply voltage range and can operate at data rates up to 100 Mbps, ensuring reliable performance in various environments. It offers a galvanic isolation of up to 5,000 VRMS, which helps protect sensitive components from high-voltage surges and noise. The ISO7741FDW model comes in a 16-pin SOIC (DW) package, which facilitates easy integration into circuit boards.
Key benefits include low power consumption, high electromagnetic compatibility, and a fail-safe output to ensure system integrity in case of failure. The device is also compliant with international safety standards, making it a reliable choice for applications requiring strict compliance and safety protocols.

Equivalent

The ISO7741FDW is a high-speed, quadruple-channel digital isolator from Texas Instruments. Equivalent products include:
1. ADuM341x Series by Analog Devices - Offers similar channel count and speed.
2. Si86xx Series by Silicon Labs - Features multiple channels and isolation capabilities.
3. MAX1493x by Maxim Integrated - Provides high-speed digital isolation.
While these alternatives offer similar functionalities, it's essential to compare the specific parameters like data rate, isolation voltage, and packaging to ensure compatibility with your application.

Features

The ISO7741FDW is a dual-channel digital isolator featuring robust galvanic isolation. Key features include:
1. Isolation Voltage: Provides high isolation voltage up to 5,700 VRMS, ensuring effective protection against high voltages.
2. Data Rate: Supports data rates up to 100 Mbps, making it suitable for high-speed communication.
3. Noise Immunity: Enhanced noise immunity with high common-mode transient immunity (CMTI) greater than 75 kV/µs.
4. Power Supply: Operates on a wide supply voltage range from 2.25 V to 5.5 V, offering flexibility in power management.
5. Low Propagation Delay: Features low propagation delay, typically around 11 ns, and channel-to-channel skew of 4 ns, ensuring fast signal transmission.
6. Rated for Automotive: AEC-Q100 qualified, suitable for automotive applications.
7. Wide Temperature Range: Operates over a broad temperature range from -40°C to +125°C, suitable for various environments.
8. Package Options: Available in a 16-pin SOIC package, facilitating easy integration into designs.
These features make the ISO7741FDW ideal for applications requiring high isolation, fast data transmission, and robust performance in harsh conditions.

Pinout

The ISO7741FDW is a digital isolator with a 16-pin configuration. It is designed to provide galvanic isolation between different parts of a circuit, often used in industrial and medical applications to ensure signal integrity and safety.
The pin functions are as follows:
- VCC1 (Pin 1): Power supply for the input side.
- GND1 (Pin 2): Ground for the input side.
- INA (Pin 3): Input signal A.
- INB (Pin 4): Input signal B.
- INC (Pin 5): Input signal C.
- IND (Pin 6): Input signal D.
- NC (Pins 7, 8, 9): Not connected, used for isolation.
- GND2 (Pin 10): Ground for the output side.
- VCC2 (Pin 11): Power supply for the output side.
- OUTA (Pin 12): Output signal A.
- OUTB (Pin 13): Output signal B.
- OUTC (Pin 14): Output signal C.
- OUTD (Pin 15): Output signal D.
- NC (Pin 16): Not connected.
This isolator supports up to 5.7 kV RMS isolation and is typically used to protect low-voltage circuitry from high-voltage spikes while ensuring data integrity across the isolation barrier.

Manufacturer

The manufacturer of the ISO7741FDW is Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and systems. The company is well-known for its development of analog chips and embedded processors, which are utilized in a variety of applications across industries, including automotive, industrial, consumer electronics, and communications equipment. TI emphasizes innovation in the semiconductor industry and is one of the leading providers of electronic components, contributing significantly to advancements in technology.

Application

The ISO7741FDW is a high-performance four-channel digital isolator commonly used in applications requiring electrical isolation. Key areas include:
1. Industrial Automation: Protects data integrity and enhances safety by isolating low-voltage control systems from high-voltage environments.
2. Power Electronics: Used in inverters and motor drives to isolate control circuits from power circuits.
3. Automotive Systems: Provides isolation in battery management systems (BMS) and electric vehicle (EV) applications.
4. Medical Equipment: Ensures patient safety by isolating high-voltage sections from user interfaces.
5. Telecommunications: Used in base stations and networking equipment to prevent ground loops and signal interference.
These applications benefit from its noise immunity, high data rates, and reliability.

Package

The ISO7741FDW is a digital isolator from Texas Instruments, and it comes in a SOIC (Small Outline Integrated Circuit) package type. Specifically, it is an 8-pin wide-body SOIC, often denoted as DW in TI's packaging nomenclature.

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