SI88342BD-ISR

Digital Isolators Overview

The SI88342BD-ISR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. utilizing capacitive coupling technology. It features four unidirectional channels with a data rate of 100Mbps and an isolation voltage of 5000Vrms. The device offers a common-mode transient immunity (CMTI) of 40kV/µs, with maximum propagation delays of 18ns and 23ns. It operates within a supply voltage range of 3V to 5.5V and supports a junction temperature range from -40°C to +125°C. The component is housed in a 24-SOIC package.

Digital Isolators Feature Summary

• Four-channel unidirectional signal isolation using capacitive coupling technology
• High common-mode transient immunity for reliable noise rejection
• Integrated shutdown control functionality for power management
• Wide operating temperature range suitable for industrial environments

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment signal transmission interfaces
• Power electronics gate drive circuits
• General-purpose digital communication isolation

Digital Isolators Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and pinout configuration. Confirm that the component status aligns with current design requirements, as this part may be designated as not recommended for new designs. Cross-reference the datasheet for precise electrical characteristics and thermal performance limits before integration into final products.

Digital Isolators Selection Notes

Select this component when high-speed digital isolation is required alongside robust noise immunity. The four-channel configuration simplifies board layout for multi-signal applications. Ensure the system voltage levels match the 3V to 5.5V operating range. Consider the 24-SOIC package dimensions for mechanical fit and thermal dissipation needs in the target application.

Digital Isolators Part Context

This device belongs to the Si8834x family of digital isolators from Skyworks Solutions Inc. It shares architectural similarities with other members like the SI88342BC-ISR but differs in specific packaging or qualification grades. The family utilizes proprietary capacitive isolation technology to provide high reliability without the limitations of optical components.

Digital Isolators Replacement Considerations

The SI88342BC-ISR is listed as a similar substitute. Verify functional equivalence regarding channel count, data rate, and isolation voltage before substitution. Check for any differences in package dimensions or pin assignments to ensure mechanical compatibility.