SI88622BD-IS

Overview

The SI88622BD-IS is a Skyworks Solutions digital isolator featuring two unidirectional channels with capacitive coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an insulation voltage of 5000 Vrms and exhibits a propagation delay of 18 ns. It includes a shutdown function and offers a common-mode transient immunity of 40 kV/µs. Packaged in a 20-SOIC (0.295", 7.50mm wide) surface-mount format, it functions reliably across temperatures from -40°C to +125°C.

Feature Summary

• Utilizes capacitive coupling for high-reliability signal isolation without magnetic interference.
• Integrates a dedicated shutdown pin to minimize power consumption during inactive states.
• Delivers robust common-mode transient immunity to ensure signal integrity in noisy environments.

Applications

• Industrial automation control systems
• Power electronics gate drive interfaces
• General-purpose isolated communication links

Procurement Notes

Verify the specific suffix 'IS' confirms the inclusion of the shutdown functionality and the SOIC-Wide package variant. Confirm that the component meets AEC-Q100 automotive qualification requirements if intended for automotive applications. Check current lifecycle status as some variants may be marked as not recommended for new designs. Ensure compatibility with standard reflow soldering profiles for moisture-sensitive devices.

Selection Notes

Select this model when bidirectional isolation is not required, as it supports only unidirectional data flow. Choose over the SI88622BC-ISR variant specifically when the shutdown feature is necessary for system power management. Consider the 20-SOIC footprint constraints against available PCB real estate. Verify that the 100 Mb/s data rate suffices for the target application's throughput needs.

Part Context

This component belongs to the Si8862x series of ultra-low-power digital isolators from Skyworks Solutions. It is part of the broader industrial isolation solution portfolio designed to replace legacy optocouplers. The series emphasizes size reduction and reliability advantages over traditional isolation technologies while maintaining high-speed performance standards.

Replacement Considerations

SI88622BC-ISR

FAQ

Does the SI88622BD-IS support bidirectional data transmission?

No, the SI88622BD-IS is configured for unidirectional polarity only, providing two output channels with zero input channels on the primary side.

What is the maximum operating temperature for this isolator?

The device is rated for operation up to a maximum junction temperature corresponding to an ambient temperature of +125°C.