SI8652EB-AU

Digital Isolators Overview

The SI8652EB-AU is an automotive-grade digital isolator from the Si865x series, manufactured by Skyworks Solutions. It features five unidirectional channels with a configuration of three forward and two reverse paths. The device utilizes capacitive coupling technology to provide an insulation voltage of 2500 Vrms. It supports data rates up to 150 Mb/s with a propagation delay of 8 ns. Operating within a supply voltage range of 2.5 V to 5.5 V, it draws a typical operating current of 7 mA. The component is housed in a QSOP-16 package and is qualified under AEC-Q100 standards for operation between -40°C and +125°C.

Digital Isolators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments
• Capacitive coupling isolation technology providing robust signal transmission across isolation barriers
• Integrated shutdown functionality for power management and system control flexibility

Digital Isolators Applications

• Automotive telematics systems requiring isolated communication interfaces
• Inverter gate drive circuits in electric vehicle powertrains
• On-board charger (OBC) control logic isolation

Digital Isolators Procurement Notes

Verify that the specific part number suffix matches the required channel configuration and insulation rating. Confirm AEC-Q100 qualification status if automotive deployment is intended. Check moisture sensitivity levels and reflow soldering profile compatibility during assembly planning. Ensure the QSOP-16 package dimensions align with the target PCB footprint design constraints.

Digital Isolators Selection Notes

Select this component when automotive reliability and low power consumption are critical. The 2.5 kVrms rating suits applications where moderate isolation is sufficient compared to higher voltage variants. The unidirectional nature requires careful circuit topology planning for bidirectional data lines. Consider the 7 mA current draw against total system power budgets for battery-operated or efficiency-sensitive designs.

Digital Isolators Part Context

This device belongs to the Si865x family of digital isolators, which combines high-speed signal isolation with integrated DC/DC converter capabilities in other variants. While the SI8652EB-AU does not include an on-chip DC/DC converter, it shares the family's core capacitive isolation architecture. It serves as a specialized solution for automotive applications demanding specific channel counts and insulation levels within the broader interface IC portfolio.

Digital Isolators Replacement Considerations

Direct substitutes within the same family include SI8652BC-B-IS1 for higher insulation ratings or SI8650EB-AU for different channel configurations. Verify pinout compatibility and thermal performance before substitution. Cross-reference datasheets to ensure equivalent propagation delay and CMTI specifications match the original design requirements.