SI86S641BB-AUR

Digital Isolators Overview

The SI86S641BB-AUR is an automotive-grade digital isolator from the Si86S6xx series, manufactured by Skyworks Solutions Inc. It features four unidirectional channels with a data rate of 150 Mbps and a propagation delay of 42 ns. The device offers 2500 Vrms isolation voltage and a common-mode transient immunity of 150 kV/µs. Operating on a supply voltage range of 2.25 V to 5.5 V, it consumes typical supply current of 14.3 mA per channel. Packaged in a 16-SSOP (QSOP) format, it supports temperatures from -40°C to +125°C and holds AEC-Q100 qualification.

Digital Isolators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for harsh environment operation
• High-speed signal transmission capability up to 150 Mbps without start-up initialization
• Robust noise immunity provided by capacitive coupling technology with high CMTI
• Wide operating supply voltage range supporting both 2.5 V and 5 V logic systems

Digital Isolators Applications

• Automotive powertrain control units requiring galvanic isolation
• Electric vehicle battery management systems
• Inverter gate drive circuits in motor drives
• Charging station communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'AUR' indicates reel packaging when ordering. Confirm that the automotive grade designation aligns with your system's reliability requirements. Ensure the 16-SSOP footprint matches your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing process. Validate the 2500 Vrms isolation rating against your circuit's safety standards.

Digital Isolators Selection Notes

Select this component when automotive certification and high-speed isolation are critical. Compare the 150 Mbps speed against lower-speed alternatives if bandwidth is not limiting. Consider the 14.3 mA current consumption for thermal management in dense assemblies. Verify that the unidirectional channel configuration fits your signal flow needs. Ensure the 2.25 V minimum supply voltage is compatible with your lowest operating condition.

Digital Isolators Part Context

This part belongs to the Si86S6xx family of automotive digital isolators. It shares the core capacitive isolation technology with other members like the SI86S641BB-AU but differs in packaging and tape-and-reel configuration. The family is designed for high-reliability applications in electric vehicles and industrial automation where robust signal integrity is essential.

Digital Isolators Replacement Considerations

The SI86S641BB-AU is a parameter-equivalent alternative in tube packaging. Verify package compatibility as the SSOP form factor remains consistent. Ensure the electrical specifications match exactly before substitution. No functional changes are implied by the suffix difference alone.