SI86S621EC-ISR

Digital Isolators Overview

The SI86S621EC-ISR is a digital isolator from the Si86S6x series by Skyworks Solutions. It features two unidirectional channels with capacitive coupling isolation. The device supports data rates up to 150 Mb/s and offers an insulation voltage of 3750 Vrms. Operating on a supply voltage between 2.5 V and 5.5 V, it exhibits a propagation delay of 8 ns. The component is qualified under AEC-Q100 standards for automotive applications. It operates within a temperature range of -40°C to +125°C and is housed in an 8-SOIC (SOIC-NB-8) surface-mount package.

Digital Isolators Feature Summary

• Provides galvanic isolation via capacitive coupling technology for signal integrity
• Supports high-speed data transmission with a maximum rate of 150 Mb/s
• Includes shutdown functionality to minimize power consumption during idle states
• Meets automotive reliability requirements through AEC-Q100 qualification

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial automation systems utilizing isolated gate drivers
• Medical equipment needing reinforced electrical isolation for safety compliance
• Power conversion circuits involving isolated DC-DC converter feedback loops

Digital Isolators Procurement Notes

Verify the specific suffix 'EC' against official Skyworks documentation to confirm the exact insulation rating and material composition, as variations exist within the Si86S6x family. Ensure the SOIC-NB-8 footprint matches the target PCB design constraints. Confirm AEC-Q100 qualification status if the application mandates automotive-grade components. Check moisture sensitivity levels for proper storage and reflow soldering profiles.

Digital Isolators Selection Notes

Select this component when bidirectional isolation is not required, as it supports only unidirectional signal flow. Compare the 3750 Vrms insulation rating against system safety standards to ensure adequate clearance and creepage distances. Evaluate the 8 ns propagation delay against timing requirements of the communication protocol. Consider the 8-pin package density for space-constrained designs compared to wider SOIC options.

Digital Isolators Part Context

This part belongs to the Si86S6x series of low-power digital isolators. It complements other Skyworks isolators like the SI8621BT-IS, which offers higher insulation ratings but in a different package. The series utilizes CMOS processes to achieve low power consumption while maintaining high noise immunity. It serves as a modern replacement for older optocoupler technologies in high-speed digital interfaces.

Digital Isolators Replacement Considerations

Direct substitutes include SI86S621BC-ISR and SI86S621BD-ISR, which share the same channel count and package type. Verify that alternative parts match the specific insulation voltage and operating temperature range requirements before substitution.