ISO7231CQDWRQ1

Overview

The ISO7231CQDWRQ1 is a triple-channel digital isolator from Texas Instruments, designed for high-speed data transmission in automotive applications. It features capacitive coupling technology and operates within a supply voltage range of 3.15V to 5.5V. The device supports a data rate of 25Mbps with a maximum propagation delay of 45ns. It provides an isolation voltage of 4000Vpk and a common-mode transient immunity (CMTI) of 25kV/µs. Packaged in a 16-SOIC format, it functions bidirectionally across channels with a 2/1 input-output configuration.

Feature Summary

• Triple-channel architecture with configurable output enable functions for flexible system integration
• High common-mode transient immunity ensures reliable operation in electrically noisy environments
• Automotive-grade qualification compliant with AEC-Q100 standards for durability
• Capacitive coupling technology enables robust signal isolation without magnetic interference

Applications

• Automotive engine control units requiring isolated sensor feedback
• Inverter gate drive circuits in electric vehicle powertrains
• Isolated communication interfaces in automotive body electronics
• Safety-critical systems demanding high reliability and noise immunity

Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and temperature grade. Confirm AEC-Q100 certification status if automotive compliance is mandatory. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing designs.

Selection Notes

Select this component when triple-channel isolation is required at 25Mbps speeds. Ensure the 4000Vpk isolation rating meets system safety requirements. Consider the 16-SOIC package dimensions for PCB layout constraints. Verify that the 3.15V to 5.5V supply range aligns with the target logic levels.

Part Context

Part of the ISO723x-Q1 family of high-speed digital isolators. Designed specifically for automotive applications where reliability and noise immunity are critical. Offers multiple channel configurations to reduce bill of materials count compared to single-channel alternatives.

Replacement Considerations

Check ISO7231CDWR for non-automotive equivalents. Verify ISO7231CQDWQ1 for tube packaging options. Ensure substitute parts maintain AEC-Q100 qualification and identical pinout compatibility.