SI8640BT-ASR

Digital Isolators Overview

The SI8640BT-ASR is a unidirectional digital isolator from the Si864x series, manufactured by Skyworks Solutions. It features four channels with capacitive coupling technology and supports data rates up to 150 Mb/s. The device operates within a supply voltage range of 2.5 V to 5.5 V, consuming 6.1 mA of working power current. It provides an insulation voltage of 5000 Vrms and exhibits a propagation delay of 8 ns. The component is qualified under AEC-Q100 standards for automotive applications and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation technology ensures high reliability and immunity to magnetic fields
• AEC-Q100 qualification confirms suitability for demanding automotive electronic environments
• Unidirectional signal transmission design simplifies circuit integration for specific data flow requirements

Digital Isolators Applications

• Automotive battery management systems
• Inverter control circuits in electric vehicles
• Motor drive isolation interfaces
• On-board charger communication links

Digital Isolators Procurement Notes

Verify that the ordering suffix matches the required package type and reel specifications. Confirm AEC-Q100 compliance documentation is available for automotive quality assurance. Ensure the supplier provides traceability records consistent with Skyworks manufacturing standards. Cross-reference the part number against official distributor catalogs to avoid counterfeit components. Validate that the received units match the specified SOIC-16 footprint dimensions.

Digital Isolators Selection Notes

Select this component when unidirectional isolation is sufficient for the application architecture. The four-channel configuration allows consolidation of multiple isolated signals into a single package. Consider the 150 Mb/s data rate limit for high-speed interface requirements. Evaluate the 5000 Vrms insulation rating against system safety clearance needs. Assess the operating temperature range compatibility with the intended environmental conditions.

Digital Isolators Part Context

This device belongs to the Si864x family of ultra-low power digital isolators. It utilizes Skyworks' proprietary capacitive isolation process for robust performance. The SOIC-16 package offers a compact solution for space-constrained designs. The series is designed to replace traditional transformer-based isolators in modern electronic systems.

Digital Isolators Replacement Considerations

SI8640BD-ASR is listed as a parametric equivalent in distributor databases.