ISO7321FCQDQ1

Overview

The ISO7321FCQDQ1 is an automotive-grade, dual-channel digital isolator from Texas Instruments designed for robust electromagnetic compatibility and low power consumption. It features galvanic isolation with a maximum insulation voltage of 3000 Vrms and a common-mode transient immunity of 25 kV/µs. The device supports data rates up to 25 Mb/s with a typical propagation delay of 33 ns. It operates on a single supply voltage ranging from 3 V to 5.5 V, drawing a typical operating current of 3.7 mA per channel. Certified under AEC-Q100 standards, it functions reliably within a temperature range of -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability in vehicle applications
• Enhanced electromagnetic interference resistance ensuring stable signal transmission in noisy environments
• Low power architecture optimized for energy-efficient operation in battery-powered systems

Applications

• Automotive gate driver circuits for motor control and power management
• Isolated communication interfaces in electric vehicle powertrains
• Safety-critical sensor signal conditioning in automotive electronics

Procurement Notes

Verify the specific suffix 'QDQ1' against official Texas Instruments documentation to confirm automotive grade classification and package type. Ensure compliance with RoHS directives and check for any recent product change notifications that may affect pinout or electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when high common-mode transient immunity and automotive certification are required. It is suitable for designs needing reliable isolation between microcontrollers and high-voltage power stages. Consider the SOIC-8 package constraints and thermal dissipation requirements relative to the system's ambient temperature conditions.

Part Context

This part belongs to the ISO732x-Q1 family of digital isolators, which are engineered specifically for automotive applications requiring robust performance under harsh electromagnetic conditions. The series provides scalable channel options while maintaining consistent low-power profiles and high-speed data transmission capabilities across the product line.

Replacement Considerations

ISO7321CQDRQ1 serves as a verified alternative within the same automotive family, offering similar functional parameters and packaging.