SI88622EC-ISR

Overview

The SI88622EC-ISR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two unidirectional channels with a data rate of 100 Mb/s and an isolation voltage of 5000 Vrms. The device utilizes capacitive coupling technology and operates within a supply voltage range of 3 V to 5.5 V. It exhibits a propagation delay of 18 ns and supports a common-mode transient immunity (CMTI) of 40 kV/µs. The component is housed in a 20-SOIC package and is designed for surface mount installation.

Feature Summary

• Provides galvanic isolation between circuits operating at different voltage levels using capacitive coupling technology.
• Supports high-speed data transmission with a maximum data rate of 100 Mb/s across two unidirectional channels.
• Features robust common-mode transient immunity rated at 40 kV/µs for reliable signal integrity in noisy environments.

Applications

• Industrial process control systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation barriers
• Power electronics monitoring and control circuits

Procurement Notes

Verify the specific suffix 'ISR' confirms the reel packaging format, as this affects handling and storage requirements. Ensure the 5000 Vrms isolation rating aligns with your system's safety standards. Confirm that the 20-SOIC wide package dimensions fit your PCB layout constraints. Check for AEC-Q100 qualification if automotive reliability is required. Validate that the 3 V to 5.5 V supply range matches your logic level requirements.

Selection Notes

Select this component when high-speed bidirectional or unidirectional isolation is needed with strong noise immunity. The 100 Mb/s data rate suits applications like SPI, I2C, UART, and GPIO isolation. Consider the 20-pin SOIC package for wider channel spacing compared to narrower packages. The 5000 Vrms isolation provides a higher safety margin than lower-rated alternatives. Ensure the unidirectional channel configuration matches your signal flow direction.

Part Context

The SI88622EC-ISR belongs to the Si8862x series of digital isolators from Skyworks Solutions. This series focuses on providing robust isolation solutions for industrial and commercial applications. The EC variant typically denotes specific insulation and safety certifications. The part integrates capacitive isolation technology to replace traditional magnetic transformers, offering smaller form factors and lower power consumption.

Replacement Considerations

• SI88622ED-ISR

FAQ

What is the common-mode transient immunity (CMTI) of the SI88622EC-ISR?

The SI88622EC-ISR has a minimum CMTI of 40 kV/µs, ensuring reliable operation in high-noise environments.

Does the SI88622EC-ISR include an integrated DC-DC converter?

No, the SI88622EC-ISR is a digital isolator without an integrated DC-DC converter; external power supplies are required for each side.