SI86S642BB-AU

Digital Isolators Overview

The SI86S642BB-AU is an automotive-grade digital isolator from Skyworks Solutions, featuring four unidirectional channels with capacitive coupling technology. It provides a basic isolation voltage of 2500 Vrms and supports data rates up to 150 Mbps. The device operates within a supply voltage range of 2.25 V to 5.5 V and exhibits a common-mode transient immunity of 150 kV/µs. Propagation delays are specified at 42 ns maximum for both high-to-low and low-to-high transitions. It is housed in a 16-SSOP package and certified to AEC-Q100 standards for operation between -40°C and +125°C.

Digital Isolators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High-speed signal transmission with 150 Mbps data rate capability
• Robust noise immunity characterized by 150 kV/µs common-mode transient rejection

Digital Isolators Applications

• Automotive telematics systems
• Advanced driver assistance systems (ADAS)
• Inverter gate drive control
• Industrial motor control interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'AU' corresponds to the 16-SSOP package configuration required for your layout. Confirm that the 2500 Vrms isolation rating meets the safety requirements of your application circuit. Ensure compatibility with the 2.25 V to 5.5 V supply voltage range during system design validation.

Digital Isolators Selection Notes

Select this component when bidirectional isolation is not required, as it features unidirectional channels only. Consider the 42 ns propagation delay for timing-sensitive applications. Compare against the SI86S642HC variant if higher 3750 Vrms isolation is necessary for your specific electrical clearance needs.

Digital Isolators Part Context

This part belongs to the Si86S6x family of SPI digital isolators, which integrate on-chip DC/DC converters for isolated power delivery. The family combines high-speed dual or quad signal isolation with power generation capabilities, offering a compact solution for systems requiring galvanic isolation without external transformer components.

Digital Isolators Replacement Considerations

The SI86S642BC-IS1 serves as a parameter-equivalent alternative within the same series, though it utilizes an SOIC-NB-16 package instead of SSOP. Verify pinout compatibility and thermal performance before substituting.