NSI8221N0-Q1SPR

Digital Isolators Overview

The NSI8221N0-Q1SPR is a general-purpose, automotive-grade digital isolator from the NSI822x series. It features two independent channels with a maximum data rate of 150Mbps and a propagation delay of 15ns. The device provides an isolation voltage of 3750Vrms and a common-mode transient immunity (CMTI) of 200kV/µs. It operates on supply voltages between 2.5V and 5.5V for both sides and supports a wide operating temperature range from -40°C to 125°C. Packaged in an 8-SOIC format, it utilizes capacitive coupling technology.

Digital Isolators Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards
• Configurable channel direction and default output states upon power loss
• Wide supply voltage range supporting direct interface with most digital logic levels
• High electromagnetic compatibility performance with low radiation emissions

Digital Isolators Applications

• Automotive electronic control units requiring galvanic isolation
• Industrial communication interfaces such as CAN and LIN bus systems
• Motor drive circuits needing isolated gate or sensor feedback
• Power conversion systems utilizing isolated signal transmission

Digital Isolators Procurement Notes

Verify the specific suffix Q1 indicates automotive grade compliance when sourcing. Confirm the 8-SOIC package dimensions match the target PCB footprint. Ensure the 3750Vrms isolation rating meets the safety requirements of the application circuit. Check for RoHS3 compliance status if environmental regulations apply to the manufacturing region.

Digital Isolators Selection Notes

Select this component for applications requiring certified automotive reliability and high-speed digital isolation. The 200kV/µs CMTI ensures robustness against fast-switching noise in power electronics. Compare against higher CMTI variants like the W-series if extreme transient environments are present. The bidirectional capability allows flexible system architecture design without additional components.

Digital Isolators Part Context

This part belongs to the NSI822x family of high-reliability digital isolators manufactured by Novosense. The series offers various insulation voltage ratings and package options to suit different industrial and automotive needs. The N0 variant specifically denotes the default output configuration for the isolated side.

Digital Isolators Replacement Considerations

NSI8221N1-DSPR serves as a functional substitute within the same manufacturer lineup, differing primarily in default output configuration.