SI86S621BE-AS4R

Digital Isolators Overview

The SI86S621BE-AS4R is a general-purpose digital isolator from the Si86S6x series, manufactured by Skyworks Solutions. It features two unidirectional channels with capacitive coupling technology and an insulation voltage of 6000 Vrms. The device supports data rates up to 150 Mb/s and operates within a supply voltage range of 2.25 V to 5.5 V. Key electrical parameters include a propagation delay of 13.5 ns, rise/fall times of 2.5 ns, and common-mode transient immunity of 100 kV/µs. It functions reliably across an operating temperature range of -40°C to +125°C and includes a shutdown feature.

Digital Isolators Feature Summary

• Provides galvanic isolation between circuits operating at different voltage levels using capacitive coupling.
• Features high electromagnetic immunity and no startup issues upon power application.
• Includes a dedicated shutdown pin for power management control.

Digital Isolators Applications

• Automotive electronic systems requiring robust signal isolation
• Industrial communication interfaces such as CAN and LIN bus isolation
• General-purpose digital isolation in mixed-signal environments

Digital Isolators Procurement Notes

Verify the specific suffix AS4R against official Skyworks documentation to confirm it denotes the reel packaging variant of the SI86S621BE. Ensure compatibility with required automotive qualification standards if used in vehicle applications. Cross-reference the datasheet for exact thermal and electrical limits before finalizing procurement specifications.

Digital Isolators Selection Notes

Select this component when bidirectional isolation is not required, as it offers only unidirectional channels. Choose the 6000 Vrms insulation rating for high-voltage separation needs. Consider the 150 Mbps data rate capability for moderate-speed applications. Verify that the SSO-8 package dimensions fit the target PCB layout constraints.

Digital Isolators Part Context

This part belongs to the Si86S6x family of digital isolators from Skyworks Solutions. These devices are designed to replace traditional optocouplers in modern designs, offering superior performance in speed, power consumption, and reliability. The family includes various channel counts and insulation ratings tailored for diverse interface requirements.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers: None identified in provided source material.