SI8642BD-B-ISR

Digital Isolators Overview

The SI8642BD-B-ISR is a four-channel digital isolator from Skyworks Solutions, utilizing capacitive coupling technology. It operates with a maximum data rate of 150 Mbps and supports unidirectional signal transmission across two forward and two reverse channels. The device provides an insulation voltage of 5000 Vrms and functions within a supply voltage range of 2.375 V to 5.5 V. Key electrical parameters include a propagation delay of 8 ns, rise and fall times of 4 ns, and a power dissipation of 275 mW. It is housed in a SOIC-Wide-16 package and supports general-purpose protocols.

Digital Isolators Feature Summary

• Capacitive coupling isolation for high-speed digital signal transmission
• Four-channel architecture with two forward and two reverse paths
• Wide operating supply voltage range supporting 2.375 V to 5.5 V
• High insulation voltage rating of 5000 Vrms

Digital Isolators Applications

• General-purpose digital isolation in industrial systems
• Isolation interfaces for microcontrollers and communication buses
• Power electronics control circuits requiring galvanic separation

Digital Isolators Procurement Notes

Verify the specific suffix 'ISR' confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the component matches the SOIC-Wide-16 footprint dimensions during PCB layout validation. Confirm that the 5000 Vrms insulation rating aligns with the safety requirements of the target application environment. Cross-reference the manufacturer part number against official Skyworks documentation to avoid counterfeit components.

Digital Isolators Selection Notes

Select this component when a four-channel isolator with 150 Mbps speed and 5 kVrms isolation is required. The wide supply voltage range allows compatibility with various logic families. Consider the SOIC-Wide-16 package for standard surface-mount assembly. Verify thermal performance under maximum load conditions given the 275 mW power dissipation specification.

Digital Isolators Part Context

This part belongs to the Si864x series of digital isolators from Skyworks Solutions. The series utilizes proprietary CMOS process technology to provide robust isolation between circuit domains. The SI8642 variant specifically offers four independent channels, making it suitable for complex multi-signal isolation tasks in demanding electronic environments.

Digital Isolators Replacement Considerations

SI8642BD-B-IS (Tube Packaging)

Digital Isolators FAQ

What is the maximum data rate supported by the SI8642BD-B-ISR?

The device supports a maximum data rate of 150 Mbps.

Does the SI8642BD-B-ISR require start-up initialization?

No, the device does not require start-up initialization upon power-up.