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SI88444BD-AS is listed in the Isolators - Gate Drivers range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is LINEAR IC. Review the specifications below when checking this part for your BOM.
The SI88444BD-AS is a quad digital isolator from Skyworks Solutions, housed in a 20-SOIC package. It features four unidirectional channels with a data rate of 100 Mb/s and an isolation voltage of 5000 Vrms. The device operates on a supply voltage between 3 V and 5.5 V, drawing 11 mA of current. Key timing parameters include a propagation delay of 18 ns, rise/fall times of 2.5 ns, and pulse width distortion of 4.5 ns. It functions within a temperature range of -40°C to +125°C.
Verify the specific suffix 'AS' against official Skyworks documentation to confirm tape-and-reel packaging requirements versus tube packaging. Ensure the component meets RoHS standards and check for moisture sensitivity level (MSL) handling precautions during assembly. Confirm availability status as distributors may list obsolete or limited stock items.
Select this component when four isolated bidirectional or unidirectional channels are required without an integrated power converter. Compare against the SI8844x series variants to determine if integrated DC-DC conversion is necessary for the application. Evaluate channel count and package size constraints relative to the SOIC-20 footprint.
This part belongs to the Si8844x family of quad digital isolators. Unlike the SI88443 or SI88444-IS variants which integrate an on-chip isolated DC-DC converter, the SI88444BD-AS provides only signal isolation. This distinction is critical for designs requiring external isolated power supplies rather than integrated converter solutions.
SI88444BD-ISR is a similar variant within the same family offering integrated DC-DC conversion capabilities.
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