SI8642EC-B-IS1R

Digital Isolators Overview

The SI8642EC-B-IS1R 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 directions, utilizing capacitive coupling technology for signal transmission. The device supports data rates up to 150 Mb/s and offers an isolation voltage of 3750 Vrms. It operates within a supply voltage range of 2.375 V to 5.5 V and has a maximum propagation delay of 8 ns. The component is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides high-speed digital signal isolation using capacitive coupling technology.
• Features four independent channels configured as two forward and two reverse paths.
• Includes shutdown functionality for power management optimization.
• Meets automotive reliability standards through AEC-Q100 qualification.

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial inverters and motor drives needing galvanic isolation
• Medical equipment requiring safe patient isolation circuits

Digital Isolators Procurement Notes

Verify the specific suffix IS1R indicates reel packaging when ordering. Confirm that the EC designation corresponds to the required 3750 Vrms isolation rating for your design. Ensure compatibility with the 16-SOIC narrow package dimensions. Check for RoHS compliance status if restricted substances are a concern in your manufacturing process.

Digital Isolators Selection Notes

Select this part when 3750 Vrms isolation is necessary compared to lower-rated variants like the BB series. Consider the 150 Mb/s data rate capability for high-speed applications. Evaluate the 8 ns propagation delay against system timing requirements. Verify that the unidirectional channel configuration meets the signal flow needs of the circuit design.

Digital Isolators Part Context

This component belongs to the Si864x family of digital isolators from Skyworks Solutions. It shares the same core architecture and pinout with other members of the series, differing primarily in isolation voltage ratings and packaging options. The family is designed for general-purpose isolation in various industrial and automotive applications.

Digital Isolators Replacement Considerations

SI8642BC-B-IS1R offers similar specifications with 3750 Vrms isolation. SI8642BB-B-IS1R provides 2500 Vrms isolation for lower voltage requirements. SI8642ED-B-ISR provides 5000 Vrms isolation for higher voltage applications.