SI8640BT-IS

Digital Isolators Overview

The SI8640BT-IS is a general-purpose digital isolator from Skyworks Solutions, featuring four forward channels and zero reverse channels. It utilizes capacitive coupling technology to provide electrical isolation with a rated insulation voltage of 5000 Vrms and supports surge withstand capability up to 10 kV. The device operates at data rates of 150 Mb/s with a typical propagation delay of 8 ns. It functions within a supply voltage range of 2.375 V to 5.5 V and is housed in a 16-pin SOIC-Wide package. The component is qualified under AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Provides high-voltage isolation using capacitive coupling technology
• Supports unidirectional signal transmission across four independent channels
• Includes shutdown functionality for power management optimization
• Qualified for automotive reliability standards

Digital Isolators Applications

• Automotive electronic control units
• Industrial automation systems
• Power supply feedback loops
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm package type and channel configuration. Ensure compatibility with required isolation voltage ratings and operating temperature ranges. Confirm that the selected variant meets all necessary regulatory certifications for the target application environment before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when four-channel unidirectional isolation is required with high surge immunity. Consider the 16-pin wide SOIC footprint for PCB layout constraints. Evaluate the 150 Mb/s data rate against system timing requirements. Verify that the 5000 Vrms insulation rating aligns with safety standards for the specific circuit design.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which are designed to replace traditional optocouplers in modern electronic designs. The series offers improved performance characteristics including higher common-mode transient immunity and lower power consumption compared to legacy technologies.

Digital Isolators Replacement Considerations

Direct substitutes include other variants within the Si864x family such as the SI8640BD-B-IS2 or SI8640EC-B-IS1, depending on whether narrow or wide SOIC packaging is preferred. Cross-reference datasheets to ensure identical pinout and electrical specifications before substitution.