SI88342ED-ASR

Digital Isolators Overview

The SI88342ED-ASR is a general-purpose digital isolator from Skyworks Solutions, housed in a 24-SOIC package. It features four unidirectional channels with two forward and two reverse paths. The device supports data rates up to 100 Mb/s and offers an isolation voltage of 5000 Vrms. It operates on a supply voltage between 3 V and 5.5 V, drawing 10.8 mA. Key timing parameters include an 18 ns propagation delay, 2.5 ns rise/fall times, and 4.5 ns pulse width distortion. It functions within a temperature range of -40°C to +125°C without a shutdown pin.

Digital Isolators Feature Summary

• Provides galvanic isolation via capacitive coupling technology for signal integrity across potential differences.
• Supports high-speed data transmission at rates up to 100 Mb/s with low propagation delay.
• Features a compact surface-mount SOIC-24 package suitable for space-constrained designs.

Digital Isolators Applications

• Industrial automation systems requiring robust signal isolation
• Medical equipment needing high-voltage safety barriers
• Power electronics interfaces for motor control

Digital Isolators Procurement Notes

Verify the specific suffix ASR against official Skyworks documentation to confirm tape-and-reel packaging and exact electrical tolerances. Ensure compatibility with existing PCB footprints for the 24-SOIC package. Confirm that the unidirectional channel configuration meets system requirements. Check for any recent lifecycle notices or recommended replacement parts due to potential obsolescence status in certain variants.

Digital Isolators Selection Notes

Select this component when unidirectional isolation is sufficient for the application. The 100 Mb/s rate suits standard communication protocols. Verify that the 5000 Vrms isolation rating aligns with safety standards. Consider the absence of a shutdown feature if power management during idle states is required. Ensure the operating temperature range covers the environmental conditions.

Digital Isolators Part Context

This part belongs to the Si8834x family of digital isolators. These devices are designed to replace traditional optocouplers in modern applications. They offer improved performance in speed, power consumption, and size. The family includes various channel configurations and package options to suit diverse interface needs.

Digital Isolators Replacement Considerations

Check for direct replacements like SI88342ED-AS if reel packaging is not mandatory. Verify functional equivalence for other Si8834x variants with similar channel counts and isolation ratings.

Digital Isolators FAQ

Does the SI88342ED-ASR include a shutdown pin?

No, this specific variant does not have a shutdown pin; it operates continuously when powered.

What is the common-mode transient immunity (CMTI) of this device?

The device provides a CMTI of 40 kV/µs, ensuring reliable operation in noisy environments.