ISO7721QDWQ1

Overview

The ISO7721QDWQ1 is an automotive-grade digital isolator from the ISO772x-Q1 series, manufactured by Texas Instruments. It features four channels with a unidirectional configuration, providing robust signal isolation via capacitive coupling technology. The device supports data rates up to 100Mbps and offers a high common-mode transient immunity of 85kV/µs. It operates within a supply voltage range of 2.25V to 5.5V and is qualified under AEC-Q100 standards for automotive applications. The component is housed in a 16-SOIC package with a width of 7.50mm.

Feature Summary

• Provides galvanic isolation between circuits using capacitive coupling technology for reliable signal transmission.
• Features high common-mode transient immunity to maintain signal integrity in electrically noisy environments.
• Designed for automotive reliability with AEC-Q100 qualification and extended temperature operation capabilities.

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial systems needing robust digital signal isolation
• Inverter gate drive circuits in automotive power electronics

Procurement Notes

Verify the specific suffix QDWQ1 to ensure the correct package type and automotive grade are selected. Confirm that the component meets the required AEC-Q100 qualification status for your specific application environment. Check for any end-of-life notices or obsolescence warnings associated with this part number before finalizing procurement plans.

Selection Notes

Select this component when a quad-channel, unidirectional isolator is required for automotive applications. Ensure the design accommodates the 16-SOIC footprint and the specified voltage ranges. Consider the propagation delay and pulse width distortion specifications if precise timing synchronization is critical for the system architecture.

Part Context

This part belongs to the ISO774x-Q1 and ISO772x-Q1 family of automotive digital isolators. These devices are designed to replace traditional magnetic couplers in automotive networks, offering smaller size and lower power consumption while maintaining high reliability standards required for safety-critical vehicle systems.

Replacement Considerations

ISO7741QDWRQ1 is a manufacturer-recommended alternative with similar specifications but available in tape-and-reel packaging instead of tubes.