SI8641BB-AS

Digital Isolators Overview

The SI8641BB-AS is a Skyworks Solutions automotive-grade digital isolator featuring four unidirectional channels with capacitive coupling technology. It provides an insulation voltage of 2500 Vrms and supports data rates up to 150 Mb/s. The device operates within a supply voltage range of 2.375 V to 5.5 V, drawing a typical operating current of 14.3 mA. Key electrical parameters include a propagation delay of 8 ns, rise and fall times of 4 ns, and a pulse width distortion of 0.2 ns. It functions reliably across a temperature range of -40°C to +125°C and is housed in a QSOP-16 package.

Digital Isolators Feature Summary

• Automotive-grade qualification ensuring reliability for vehicle applications
• Capacitive coupling isolation technology for high-speed signal transmission
• Quad-channel unidirectional configuration for complex interface needs

Digital Isolators Applications

• Automotive powertrain control systems
• Inverter gate drive interfaces
• Motor control circuit isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm the exact package variant and tape/reel specifications. Ensure the component meets AEC-Q100 standards required for automotive integration. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and avoid counterfeit risks during sourcing.

Digital Isolators Selection Notes

Select this component when designing isolated interfaces requiring automotive certification and moderate speed performance. The 2500 Vrms isolation rating suits applications with lower voltage stress compared to higher-rated variants. Consider the 14.3 mA current consumption relative to system power budgets. This model is suitable where bidirectional communication is not required due to its unidirectional channel design.

Digital Isolators Part Context

This device belongs to the Si864x series of digital isolators from Skyworks Solutions. It utilizes proprietary capacitive isolation technology to provide robust signal transmission across isolation barriers. The series is designed to replace traditional optocouplers, offering improved performance, smaller form factors, and greater consistency in automotive electronic architectures.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.