SI8642BB-AS1

Digital Isolators Overview

The SI8642BB-AS1 is a general-purpose digital isolator from Skyworks Solutions, featuring four unidirectional channels in a 16-SOIC package. It provides 2500 Vrms isolation voltage with capacitive coupling technology. 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. Key electrical parameters include an 8 ns propagation delay, 4 ns rise/fall times, and 35 kV/µs common-mode transient immunity. It functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Four-channel unidirectional signal isolation using capacitive coupling
• High common-mode transient immunity for noise resilience
• Wide operating supply voltage range supporting various logic levels
• Automotive-grade qualification ensuring reliability in harsh environments

Digital Isolators Applications

• Industrial automation control systems
• Automotive electronic control units
• Power supply feedback loops
• Medical equipment signal isolation

Digital Isolators Procurement Notes

Verify the specific suffix AS1 against the official Skyworks datasheet to confirm pinout and packaging dimensions. Ensure the component meets AEC-Q100 requirements if used in automotive applications. Check moisture sensitivity level handling procedures during assembly. Confirm that the 16-SOIC footprint matches the design board layout. Validate insulation voltage ratings against system safety standards.

Digital Isolators Selection Notes

Select this part when four independent unidirectional isolation paths are required. Choose based on the need for high-speed data transmission up to 150 Mb/s. Consider the 2500 Vrms isolation barrier for basic protection needs. Evaluate the wide temperature range for extreme environment operation. Compare power consumption against other isolators if energy efficiency is critical.

Digital Isolators Part Context

This component belongs to the Si864x series of digital isolators. It utilizes Skyworks' proprietary capacitive isolation technology. The series offers various channel configurations and isolation voltages. The SI8642 variant specifically provides four channels. It competes in the general-purpose isolation market segment.

Digital Isolators FAQ

What is the maximum data rate supported by the SI8642BB-AS1?

The device supports a maximum data rate of 150 Mb/s.

Does the SI8642BB-AS1 have a shutdown function?

No, the SI8642BB-AS1 does not include a shutdown pin or function.

What is the common-mode transient immunity rating?

The typical common-mode transient immunity is 35 kV/µs.