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Product Detailed Parameters
- Description：DGTL ISOLTR 3.75KV 4CH GP 20SOIC
- Series：Si88x4x
- Mfr：Skyworks Solutions Inc.
- Package：Tube
- Number of Channels：4
- Voltage - Isolation：3750Vrms
- Rise / Fall Time (Typ)：2.5ns, 2.5ns
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The SI88443EC-AS is a four-channel digital isolator from Skyworks Solutions, housed in a 20-pin SOIC package. It features unidirectional signal transmission with one forward and three reverse channels. The device supports data rates up to 100 Mb/s and operates within a supply voltage range of 3 V to 5.5 V. It provides an insulation voltage of 5000 Vrms and maintains propagation delays of 18 ns. The component functions reliably across temperatures from -40°C to +125°C.
Feature Summary
- Integrates a fully integrated secondary sensing feedback-controlled dc-dc converter for high-speed isolation
- Utilizes capacitive coupling technology for general-purpose digital signal isolation
- Provides robust electrical isolation with specified insulation voltage ratings
Applications
- Industrial automation systems requiring galvanic isolation
- Medical equipment interfaces needing high reliability
- Power electronics control circuits
Procurement Notes
Verify the specific suffix AS against official Skyworks documentation to confirm packaging and temperature grade. Confirm availability status as distribution data indicates restricted supply. Ensure design-in compliance with humidity sensitivity handling requirements during assembly processes.
Selection Notes
Select this component when a single-chip solution combining isolation and power conversion is required. The integrated dc-dc converter eliminates external magnetic components. Verify channel configuration matches system needs, as this part offers a specific mix of forward and reverse paths.
Part Context
This device belongs to the Si8844x series of high-speed digital isolators. It distinguishes itself by embedding a dc-dc converter, reducing board space compared to discrete solutions. The family targets applications demanding high common-mode transient immunity and compact form factors.
Replacement Considerations
Check SI88443ED-ISR for similar functionality but note differences in shutdown capabilities and packaging width. Verify pin compatibility before substitution.
