ISO7741FQDWWRQ1

Overview

The ISO7741FQDWWRQ1 is an automotive-grade digital isolator featuring four channels with a 3/1 input-output configuration. It utilizes capacitive coupling technology to provide robust electromagnetic compatibility performance. The device supports data rates up to 100 Mb/s and offers an insulation voltage rating of 5000 Vrms. It operates within a supply voltage range of 2.25 V to 5.5 V, consuming typical currents of 5.6 mA on the primary side and 18 mA on the secondary side. Propagation delay is specified at 10.7 ns. The component is housed in a 16-pin SOIC package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability applications
• Robust electromagnetic compatibility design ensuring stable signal integrity in noisy environments
• High insulation voltage capability providing enhanced safety isolation between circuits

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial systems demanding high-reliability digital signal isolation
• Motor drive circuits necessitating robust EMC performance

Procurement Notes

Verify that the specific suffix matches the required insulation voltage and channel configuration, as variations exist within the family. Confirm the package type corresponds to the PCB footprint requirements. Ensure the component meets the necessary automotive quality standards for the intended application environment. Cross-reference the datasheet specifications against system constraints before finalizing procurement decisions.

Selection Notes

Select this component when high-speed data transmission is required alongside stringent electromagnetic interference immunity. The 3/1 channel layout suits applications needing multiple outputs from a single source. Consider the thermal characteristics and power consumption limits during system design. Validate that the insulation voltage rating exceeds the maximum circuit potential differences to ensure safety compliance.

Part Context

This part belongs to the ISO7741-Q1 series of automotive digital isolators manufactured by Texas Instruments. The series focuses on providing high-speed isolation with enhanced robustness against electromagnetic disturbances. It serves as a critical interface component in modern vehicle architectures where reliable data transfer across isolation barriers is essential for system functionality and safety.

Replacement Considerations

ISO7741FQDWWQ1 is listed as a similar alternative within the same product family.