SI86S641EB-AUR

Digital Isolators Overview

The SI86S641EB-AUR is a Skyworks Solutions digital isolator featuring four unidirectional channels with integrated SPI protocol support. It utilizes capacitive coupling technology to provide electrical isolation rated at 2500 Vrms. The device operates within a supply voltage range of 2.25 V to 5.5 V and supports data rates up to 150 Mbps. Key performance metrics include a maximum propagation delay of 42 ns, a common-mode transient immunity of 150 kV/µs, and pulse width distortion of 2 ns. It is housed in a 16-SSOP package and certified for automotive applications under AEC-Q100 standards.

Digital Isolators Feature Summary

• Integrates SPI protocol decoding capabilities directly within the isolation barrier for simplified system design.
• Provides high-speed signal transmission with 150 Mbps data rate capability using robust capacitive coupling.
• Delivers strong noise immunity with a minimum common-mode transient immunity rating of 150 kV/µs.

Digital Isolators Applications

• Automotive battery management systems requiring isolated communication interfaces.
• Industrial motor control drives needing reliable bidirectional or unidirectional signal isolation.
• Medical equipment utilizing isolated sensor interfaces and data acquisition circuits.

Digital Isolators Procurement Notes

Verify that the specific suffix 'AUR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the automotive grade qualification (AEC-Q100) meets the specific reliability standards mandated by your end-product application. Ensure the 16-SSOP footprint matches your PCB layout constraints before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when SPI protocol handling is required on the isolated side to reduce external logic complexity. Choose this part over standard isolators if the application demands high common-mode transient immunity exceeding typical general-purpose devices. Consider the 2.5 kVrms isolation rating as sufficient for most low-voltage industrial and automotive bus architectures.

Digital Isolators Part Context

This component belongs to the Si86S6x series of Skyworks digital isolators, which are specifically engineered to handle serial peripheral interface protocols across isolation barriers. The series combines high-speed data transfer with protocol-specific features, distinguishing it from generic channel-only isolators in the broader Si86xx family.

Digital Isolators Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include SI86S641BB-AU and SI86S641EB-AU. Verify pinout compatibility and packaging differences when transitioning between reel and tube formats.

Digital Isolators FAQ

Does the SI86S641EB-AUR support bidirectional data flow?

No, the SI86S641EB-AUR is configured with four unidirectional channels only.

What is the maximum operating temperature for this device?

The device is rated for an extended operating temperature range up to +125°C.