SI86S640HC-AS1R

Digital Isolators Overview

The SI86S640HC-AS1R is an automotive-grade digital isolator from Skyworks Solutions, featuring four unidirectional channels. It provides a 3750 Vrms isolation voltage and supports data rates up to 150 Mbps. The device offers a common mode transient immunity of 150 kV/µs with maximum propagation delays of 42 ns for both low-to-high and high-to-low transitions. Packaged in a 16-pin SOIC-NB (0.154 inch width) surface-mount format, it is designed for robust signal transmission in demanding environments.

Digital Isolators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• High-speed data transmission capability at 150 Mbps
• Robust noise immunity with 150 kV/µs common mode transient rejection

Digital Isolators Applications

• Automotive battery management systems
• On-board charger interfaces
• Motor control circuits
• Inverter gate drive isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'HC' indicates the high-reliability automotive variant when sourcing. Confirm that the AS1R designation corresponds to the reel packaging format required for automated assembly lines. Ensure compatibility with standard SOIC-NB-16 footprints during PCB layout validation to prevent mechanical mismatches.

Digital Isolators Selection Notes

Select this component for applications requiring high-speed isolation in automotive power electronics. The 150 Mbps rate suits modern communication protocols, while the 150 kV/µs CMTI ensures stability against fast-switching transients. Consider the 4-channel configuration for multi-phase or complex system architectures needing galvanic separation.

Digital Isolators Part Context

This part belongs to the Si86S6x series of capacitive coupling digital isolators. It utilizes Skyworks' proprietary CMOS technology to achieve high performance within a compact package. The series is engineered to replace traditional optocouplers, offering superior speed, lower power consumption, and enhanced reliability for industrial and automotive interface applications.

Digital Isolators Replacement Considerations

The SI86S640FC-AS1R is identified as a parametric equivalent. Verify if the FC suffix denotes functional compatibility without the HC automotive reliability enhancements before substitution.