ISO7741FQDWRQ1

Overview

The ISO7741FQDWRQ1 is an automotive-grade, reinforced quad-channel digital isolator from Texas Instruments. It features a 3/1 channel configuration with unidirectional signal paths and capacitive coupling technology. The device supports data rates up to 100 Mb/s and provides an insulation voltage of 5000 Vrms. Operating within a supply voltage range of 2.25 V to 5.5 V, it exhibits a typical propagation delay of 10.7 ns and operates across a temperature range of -40°C to +125°C. Packaged in a 16-pin SOIC (DW) format, it is AEC-Q100 qualified for robust EMC performance in demanding environments.

Feature Summary

• Reinforced isolation rating suitable for safety-critical automotive applications
• High-speed data transmission capability up to 100 Mb/s
• Robust electromagnetic compatibility (EMC) performance
• Capacitive coupling technology for galvanic isolation

Applications

• Automotive engine control units
• Body electronics modules
• Infotainment system interfaces
• ADAS sensor isolation

Procurement Notes

Verify the specific suffix 'FQDWRQ1' to confirm the tape-and-reel packaging and reinforced isolation rating. Ensure the component meets AEC-Q100 Grade 1 requirements for your specific temperature class. Cross-reference the datasheet revision date against your design timeline to ensure compliance with current manufacturing standards and RoHS directives.

Selection Notes

Select this component when reinforced isolation and high EMC immunity are required in automotive systems. The 3/1 channel layout optimizes board space for applications needing three inputs and one feedback or auxiliary channel. Consider the 16-SOIC package constraints and thermal dissipation capabilities relative to your power budget and ambient operating conditions.

Part Context

This part belongs to the ISO7741-Q1 family of high-speed digital isolators designed specifically for automotive use. It complements lower-speed variants like the ISO7341 by offering higher bandwidth while maintaining strict automotive reliability standards. The family shares common pinouts but varies in isolation ratings and channel configurations to suit diverse interface needs.

Replacement Considerations

ISO7741QDWRQ1 is a manufacturer-recommended alternative within the same series. Verify that the replacement maintains the required reinforced isolation rating and AEC-Q100 qualification status before implementation.

FAQ

What is the maximum insulation voltage for the ISO7741FQDWRQ1?

The device provides a reinforced insulation voltage rating of 5000 Vrms.

Does the ISO7741FQDWRQ1 include a shutdown function?

No, the ISO7741FQDWRQ1 does not feature a shutdown pin; it operates continuously once powered.