Texas Instruments

ISO7741FQDWQ1  

Digital Isolators

ISO7741FQDWQ1 Description

The ISO7741FQDWQ1 from Texas Instruments is a high-performance, quad-channel digital isolator designed for robust signal isolation in automotive and industrial applications. It features 5000Vrms isolation and utilizes capacitive coupling technology to ensure reliable data transmission while preventing ground loops and noise interference. With a 2.25V to 5.5V supply range, it supports bidirectional logic-level translation, making it versatile for mixed-voltage systems. The device offers 100Mbps data rates, low propagation delay (16ns max), and 40kV/µs common-mode transient immunity (CMTI), ensuring signal integrity in noisy environments. Packaged in a 16-pin SOIC tube, it meets AEC-Q100 automotive-grade qualifications and ROHS3 compliance.

ISO7741FQDWQ1 Features

• High Isolation: 5000Vrms reinforced isolation for safety-critical applications.
• Fast Performance: 100Mbps data rate with 2.4ns rise/fall times and 4.9ns pulse width distortion.
• Robust Noise Immunity: 40kV/µs CMTI ensures stability in high-noise industrial environments.
• Wide Voltage Range: Operates from 2.25V to 5.5V, compatible with 3.3V and 5V systems.
• Automotive-Grade: AEC-Q100 qualified, ideal for automotive systems like EV powertrains and battery management.
• Unidirectional Channels: 3 inputs on Side 1, 1 on Side 2, optimized for control signal isolation.
• Reliable Packaging: 16-SOIC surface-mount tube with MSL 2 (1-year floor life).

ISO7741FQDWQ1 Applications

• Automotive Systems: Isolate CAN/LIN buses, sensors, and motor drives in EVs and ADAS.
• Industrial Automation: Protect PLCs, gate drivers, and communication interfaces from high-voltage transients.
• Medical Equipment: Ensure patient safety in isolated data acquisition and diagnostic devices.
• Power Supplies: Isolate feedback loops in SMPS and inverters for enhanced reliability.
• Renewable Energy: Solar inverters and battery management systems requiring high-voltage isolation.

Conclusion of ISO7741FQDWQ1

The ISO7741FQDWQ1 stands out for its high-speed, high-isolation performance, making it a top choice for automotive and industrial applications demanding robust noise immunity and reliability. Its wide supply range, low latency, and automotive certification provide a competitive edge over similar isolators, ensuring seamless integration into safety-critical systems. Whether isolating communication buses or protecting sensitive electronics, this device delivers superior signal integrity and long-term durability.

ISO7741FQDWQ1 Documents

Download datasheets and manufacturer documentation for ISO7741FQDWQ1

PCN Assembly/Origin :

Assembly/Test Site 12/May/2021      

Datasheets :

ISO774x(F)-Q1 Datasheet      

Design Resources :

Digital Isolator Design Guide      

Other Related Documents :

Isolation Glossary      

HTML Datasheet :

ISO774x(F)-Q1 Datasheet      

PCN Design/Specification :

ISO774yyy 15/Apr/2020       ISO774x-Q1 Datasheet 12/Jul/2023