ISO722QDRQ1

Overview

The ISO722QDRQ1 is a single-channel automotive-grade digital isolator from Texas Instruments, designed for robust signal transmission across isolation barriers. It utilizes capacitive coupling technology to achieve high-speed data transfer with a maximum data rate of 100 Mbps. The device offers an isolation voltage rating of 5000 Vrms and supports supply voltages ranging from 3 V to 5.5 V on both sides. Key performance metrics include a typical propagation delay of 8 ns and a common-mode transient immunity of 150 kV/µs. It operates within a temperature range of -40°C to 125°C and is housed in an 8-SOIC package.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications
• High-speed data transmission capability supporting up to 100 Mbps data rates
• Robust common-mode transient immunity ensuring stable operation in noisy environments
• Capacitive coupling technology providing galvanic isolation without magnetic components

Applications

• Automotive engine control units requiring isolated sensor interfaces
• Inverter gate drive circuits in electric vehicle powertrains
• Isolated communication links in automotive body electronics
• Motor control systems demanding high-speed signal integrity

Procurement Notes

Verify the specific suffix 'QDRQ1' matches the required automotive grade and tape-and-reel packaging configuration. Confirm that the 8-SOIC package width aligns with PCB footprint constraints. Ensure compliance with RoHS directives and check for any recent product change notices affecting assembly sites or materials. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when a single-channel isolator with high-speed performance is required for automotive environments. Compare against ISO7221 variants if dual-channel isolation is needed instead of single-channel. Consider the 100 Mbps speed limit relative to system clock requirements. Evaluate the 5000 Vrms isolation strength against safety regulations applicable to the specific application voltage levels.

Part Context

This part belongs to the ISO72x family of high-speed digital isolators from Texas Instruments. It serves as a single-channel counterpart to the dual-channel ISO7221 series. The 'Q1' suffix denotes automotive qualification, while 'RQ1' indicates reel packaging. It complements other interface solutions like optocouplers by offering smaller size and lower power consumption.

Replacement Considerations

ISO7221QDRQ1 (Dual-channel variant, requires pin reconfiguration)

FAQ

What is the maximum data rate supported by the ISO722QDRQ1?

The ISO722QDRQ1 supports a maximum data rate of 100 Mbps.

Does this device meet automotive reliability standards?

Yes, the ISO722QDRQ1 is qualified according to AEC-Q100 standards for automotive applications.