SI8631BT-IS

Digital Isolators Overview

The SI8631BT-IS is a general-purpose digital isolator from the Skyworks si863x series, housed in a 16-SOIC package. It features three unidirectional channels configured as two forward and one reverse path. The device supports data rates up to 150 Mb/s with a typical propagation delay of 8 ns. It operates on a supply voltage range of 2.5 V to 5.5 V and provides an isolation voltage of 5000 Vrms. Key performance metrics include a common-mode transient immunity (CMTI) of 60 kV/µs and a pulse width distortion of 4.5 ns maximum. It functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling technology for signal isolation
• High common-mode transient immunity capability
• Unidirectional channel configuration

Digital Isolators Applications

• Industrial automation systems
• Power metering equipment
• Inverter control circuits

Digital Isolators Procurement Notes

Verify the specific suffix IS against official Skyworks documentation to confirm the 16-SOIC package and standard operating specifications. Ensure compatibility with system voltage levels and thermal requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status through current manufacturer declarations.

Digital Isolators Selection Notes

Select this component when high CMTI is required for noisy environments. The unidirectional design suits applications where signal flow is strictly one-way. Compare power consumption and channel count against alternatives if bidirectional communication or lower pin counts are needed. Validate that the SOIC-16 footprint fits the PCB layout constraints.

Digital Isolators Part Context

This part belongs to the SI863x family of digital isolators. It shares architectural similarities with other members like the SI8631BT-AS but differs in qualification and specific electrical ratings. The family utilizes capacitive isolation technology to provide robust signal transmission across isolation barriers without magnetic coupling losses.

Digital Isolators FAQ

What is the common-mode transient immunity rating?

The SI8631BT-IS has a common-mode transient immunity (CMTI) of 60 kV/µs.

How many channels does this isolator have?

It contains three channels: two forward and one reverse.