ISO7740FQDBQRQ1

Overview

The ISO7740FQDBQRQ1 is an automotive-grade, reinforced quad-channel digital isolator from Texas Instruments. It features four unidirectional channels with a maximum data rate of 100 Mb/s and a propagation delay of 10.7 ns. The device offers a 2500 Vrms isolation rating and operates on a supply voltage range of 2.25 V to 5.5 V. It draws 22.7 mA of quiescent current and supports a wide operating temperature range from -40°C to +125°C. Packaged in a 16-pin SSOP, it provides high common-mode transient immunity for robust signal transmission.

Feature Summary

• Reinforced insulation rating for safety-critical applications
• Robust electromagnetic compatibility performance
• Quad-channel unidirectional signal isolation
• High-speed data transmission capability

Applications

• Automotive electronic control units
• Inverter gate drive circuits
• Industrial communication interfaces
• Power monitoring systems

Procurement Notes

Verify the specific suffix 'RQ1' indicates the reel packaging format and automotive qualification status. Confirm the SSOP-16 package width matches your PCB footprint requirements. Ensure the component meets AEC-Q100 standards for your specific vehicle grade application. Check for moisture sensitivity level compliance during storage and handling procedures.

Selection Notes

Select this component when reinforced isolation and high EMC robustness are required in automotive environments. The quad-channel configuration reduces board space compared to single-channel alternatives. Consider the 100 Mb/s data rate for high-speed serial communications. Evaluate the 22.7 mA power consumption against system thermal constraints.

Part Context

This part belongs to the ISO774x-Q1 family of automotive digital isolators. It utilizes capacitive coupling technology for signal transmission across the isolation barrier. The series is designed to meet stringent automotive reliability and electromagnetic interference standards.

Replacement Considerations

ISO7740FQDBQQ1 is a verified substitute offering identical electrical characteristics and functionality in cut-tape packaging.