SI8631BC-B-IS1

Digital Isolators Overview

The SI8631BC-B-IS1 is a low-power, triple-channel digital isolator from Skyworks Solutions. It features capacitive coupling technology with a 3750 Vrms isolation voltage and supports data rates up to 150 Mbps. The device operates on a supply voltage of 2.5 V to 5.5 V and includes a shutdown function. It has a propagation delay of 8 ns and a common-mode transient immunity of 35 kV/µs. Packaged in a 16-SOIC (0.154" width), it functions within a temperature range of -40°C to 125°C.

Digital Isolators Feature Summary

• Capacitive coupling provides high-speed signal isolation without start-up initialization requirements.
• Integrated shutdown function allows for power management and control of output states.
• Wide operating supply voltage range supports compatibility with various logic families.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment signal interface protection
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm package width and insulation ratings. Ensure the procurement source provides valid RoHS compliance certificates and MSL ratings. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components. Confirm that the requested quantity matches the standard supplier packaging specifications.

Digital Isolators Selection Notes

Select this component when a triple-channel isolator with 3750 Vrms rating is required. It is suitable for applications needing 150 Mbps data throughput and low power consumption. Consider the 16-SOIC narrow package for space-constrained designs. Verify that the 35 kV/µs CMTI meets the noise environment requirements of the target system.

Digital Isolators Part Context

This part belongs to the SI863x series of digital isolators. It utilizes Skyworks' proprietary capacitive isolation technology. The series offers various channel counts and insulation voltage options. The SI8631 variant specifically provides three independent channels for bidirectional or unidirectional signal transmission.

Digital Isolators Replacement Considerations

SI8631BB-B-IS1: Lower insulation voltage (2500 Vrms). SI8631BT-IS: Higher insulation voltage (5000 Vrms) and wider SOIC package. SI8631ET-AS: Automotive qualified version with surge protection.