SI8642ET-IS2R

Digital Isolators Overview

The SI8642ET-IS2R is a general-purpose digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features four channels with two forward and two reverse paths, utilizing capacitive coupling for galvanic isolation. The device supports data rates up to 150 Mb/s and operates within a supply voltage range of 2.375 V to 5.5 V. It offers an insulation voltage of 5000 Vrms and maintains a propagation delay of 8 ns. The component is housed in a SOIC-Wide-16 package and is qualified under AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Provides galvanic isolation between circuits using capacitive coupling technology
• Supports high-speed digital signal transmission at rates up to 150 Mb/s
• Includes four independent channels configured as two forward and two reverse paths
• Qualified for automotive environments under AEC-Q100 standards

Digital Isolators Applications

• Automotive electronic systems requiring high-voltage isolation
• General-purpose digital signal isolation in industrial equipment
• Power management circuits needing galvanic separation
• Motor control interfaces demanding reliable signal transmission

Digital Isolators Procurement Notes

Verify the specific suffix IS2R indicates reel packaging when sourcing this component. Confirm that the AEC-Q100 qualification aligns with your automotive project requirements. Ensure the SOIC-Wide-16 footprint matches your PCB layout constraints. Check for moisture sensitivity levels if storage conditions are critical. Validate that the 5000 Vrms insulation rating meets your safety isolation standards.

Digital Isolators Selection Notes

Select this part when four isolated channels are required for bidirectional or unidirectional data transfer. The 150 Mb/s speed suits most standard communication protocols. Consider the 5000 Vrms rating for high-noise environments. The automotive qualification makes it suitable for vehicle electronics. Compare power consumption against other Si864x variants if energy efficiency is a primary constraint.

Digital Isolators Part Context

This component belongs to the Si864x family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional magnetic couplers in modern electronic designs. The family offers various insulation voltages and channel configurations. The SI8642 variant specifically provides four channels for versatile system integration.

Digital Isolators Replacement Considerations

SI8642ET-IS serves as a tube-packaged alternative with identical electrical specifications. SI8642BC-B-IS1R offers similar performance but with a lower 3750 Vrms insulation rating. SI8642BB-B-IU provides the same functionality in a QSOP-16 package. Verify pin compatibility and insulation requirements before substituting.