SI8641BT-AS2

Digital Isolators Overview

The SI8641BT-AS2 is an automotive-grade digital isolator from the Si864x series, manufactured by Skyworks Solutions. It features four unidirectional channels configured as three forward and one reverse path. The device utilizes capacitive coupling technology to provide 5000 Vrms isolation voltage. It supports data rates up to 150 Mb/s with a propagation delay of 8 ns and rise/fall times of 4 ns. Operating on a supply voltage between 2.5 V and 5.5 V, it draws 5.2 mA of operating current. The component is housed in a 16-pin SOIC package and is qualified under AEC-Q100 standards for operation within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Capacitive coupling isolation architecture
• High common-mode transient immunity capability

Digital Isolators Applications

• Automotive electronic control units
• Inverter gate drive circuits
• Industrial communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix AS2 corresponds to the tube packaging configuration when sourcing. Confirm that the AEC-Q100 qualification status meets your specific automotive reliability requirements. Ensure the SOIC-16 footprint matches your PCB layout constraints. Cross-reference the manufacturer part number directly with Skyworks documentation to avoid confusion with non-automotive variants or different package styles.

Digital Isolators Selection Notes

Select this component when high-speed digital isolation is required in automotive environments. The 3-forward/1-reverse channel configuration suits applications needing asymmetric signal routing. Consider the 5000 Vrms isolation rating for safety-critical barriers. Evaluate the 150 Mbps data rate against system timing requirements. The wide supply voltage range allows compatibility with various logic levels.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators. It shares the core capacitive isolation technology with other members like the SI8640 and SI8641 series. The BT suffix indicates automotive grade qualification, while AS2 denotes the specific tape and reel or tube variant depending on the distributor listing context, though typically associated with standard packaging in this series.

Digital Isolators Replacement Considerations

The SI8640BT-AS2 is a similar 4-channel automotive isolator but may differ in power consumption characteristics. Verify pinout compatibility before substitution. Other Si864x variants offer different channel configurations.