SI8635BT-ISR

Digital Isolators Overview

The SI8635BT-ISR is a general-purpose digital isolator from Skyworks Solutions, featuring three unidirectional channels with capacitive coupling technology. It provides 5000 Vrms isolation voltage 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 and exhibits a propagation delay of 8 ns. Designed for robust performance, it withstands 13 kV surge voltage and offers a common-mode transient immunity of 60 kV/µs. Operating temperatures span from -40°C to +125°C, housed in a wide SOIC-16 package.

Digital Isolators Feature Summary

• Capacitive coupling architecture ensures high reliability and long-term stability without optical degradation.
• High surge withstand capability of 13 kV protects against transient electrical disturbances.
• Ultra-low power consumption design minimizes energy usage in battery-operated systems.

Digital Isolators Applications

• Industrial automation control systems
• Power management circuit isolation
• Automotive electronic control units

Digital Isolators Procurement Notes

Verify the specific suffix 'ISR' corresponds to the reel packaging format required for automated assembly processes. Confirm that the wide SOIC-16 footprint matches the target PCB layout dimensions. Ensure compliance with moisture sensitivity levels specified in the datasheet prior to soldering. Cross-reference the manufacturer part number with authorized distributor catalogs to guarantee authenticity and traceability.

Digital Isolators Selection Notes

Select this component when bidirectional communication is not required, as it features only unidirectional channels. Choose based on the need for high surge immunity exceeding standard isolation ratings. Consider the 150 Mb/s data rate suitability for high-speed signal transmission needs. Evaluate the wide SOIC-16 package availability against space constraints in dense circuit designs.

Digital Isolators Part Context

This device belongs to the SI863x series of digital isolators, utilizing Skyworks' proprietary capacitive coupling technology. The series is designed to replace traditional optocouplers, offering superior speed, lower power, and better consistency. The SI8635 variant specifically provides three-channel isolation, catering to applications requiring multiple isolated signal paths simultaneously.

Digital Isolators Replacement Considerations

SI8635BB-AS

Digital Isolators FAQ

What is the maximum surge voltage withstand capability?

The SI8635BT-ISR can withstand a surge voltage of 13 kV.

Does this device support bidirectional signaling?

No, the SI8635BT-ISR supports only unidirectional signal transmission across its three channels.