SI8645BC-AS1

Digital Isolators Overview

The SI8645BC-AS1 is an automotive-grade digital isolator from Skyworks Solutions, featuring four unidirectional channels in a SOIC-16 package. It provides 3750 Vrms insulation voltage using capacitive coupling technology. The device supports data rates up to 150 Mb/s with a propagation delay of 8 ns. Operating supply voltage ranges from 2.5 V to 5.5 V, with a typical operating current of 6.1 mA. It functions within a temperature range of -40°C to +125°C and meets AEC-Q100 qualification standards for automotive applications.

Digital Isolators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High isolation capability with 3750 Vrms insulation voltage
• Capacitive coupling technology ensures robust signal transmission
• Low power consumption suitable for energy-efficient designs

Digital Isolators Applications

• Automotive electronic control units (ECUs)
• Inverter gate drive circuits
• Motor control systems
• On-board charging (OBC) interfaces

Digital Isolators Procurement Notes

Verify the specific suffix AS1 confirms the SOIC-16 narrow body package and tube packaging format. Ensure the component matches the AEC-Q100 qualification requirements for your automotive application. Cross-reference the datasheet revision to confirm compatibility with your system's timing and voltage specifications before finalizing procurement.

Digital Isolators Selection Notes

Select this component when high channel count isolation is required in space-constrained automotive environments. The SOIC-16 package offers a balance between pin density and thermal performance. Consider the 3750 Vrms rating against system transient overvoltage requirements. The unidirectional nature suits applications where signal flow is strictly one-way across the isolation barrier.

Digital Isolators Part Context

Part of the Si864x family of digital isolators, designed specifically for harsh automotive environments. This series emphasizes low power and high reliability. The SI8645 variant provides four channels, distinguishing it from dual-channel or single-channel counterparts in the same product line.

Digital Isolators FAQ

Is the SI8645BC-AS1 qualified for automotive use?

Yes, it is AEC-Q100 qualified for automotive applications.

What is the maximum data rate supported by this isolator?

The device supports a maximum data rate of 150 Mb/s.