SI88620BD-ASR

Overview

The SI88620BD-ASR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two unidirectional channels with a data rate of 100 Mbps and an isolation voltage of 5000 Vrms. The device operates within a supply voltage range of 3 V to 5.5 V, consuming 9.5 mA of working power current. It exhibits a propagation delay of 18 ns and a common mode transient immunity of 40 kV/µs. The component is housed in a 20-SOIC package and supports operating temperatures from -40°C to +125°C.

Feature Summary

• Provides galvanic isolation for digital signal transmission between circuits
• Ensures high reliability through robust common mode transient immunity
• Supports bidirectional or unidirectional signal flow configurations

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation barriers
• Power electronics control circuits for gate drive isolation

Procurement Notes

Verify the specific suffix (ASR) against official Skyworks documentation to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with existing PCB footprint dimensions for the 20-SOIC package. Confirm that the unidirectional channel configuration meets the system design needs before finalizing procurement orders.

Selection Notes

Select this component when a 2-channel unidirectional isolator with 5000 Vrms isolation is required. Consider the 100 Mbps data rate limit for high-speed applications. Evaluate the 20-SOIC package size against available board space. Verify that the 3 V to 5.5 V supply range aligns with the target system voltage rails.

Part Context

This part belongs to the Si8862x series of digital isolators from Skyworks Solutions. These devices utilize capacitive coupling technology to provide isolation without magnetic components. The series is designed for general-purpose applications requiring reliable signal transmission across isolation barriers in noisy environments.

Replacement Considerations

Check for direct pin-to-pin replacements within the same Skyworks family, such as variants with different suffixes indicating package or temperature changes. Verify that any substitute maintains the 2-channel unidirectional architecture and equivalent isolation voltage ratings.