SI8452AA-A-IS1R

Overview

The SI8452AA-A-IS1R is a five-channel digital isolator from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It features a unidirectional configuration with four forward channels and one reverse channel. The device supports data rates up to 1 Mb/s and offers an insulation voltage of 1000 Vrms. Operating within a supply voltage range of 2.7 V to 5.5 V, it exhibits a maximum propagation delay of 35 ns. The component is housed in a 16-pin SOIC-Narrow package and functions reliably across temperatures from -40°C to +125°C.

Feature Summary

• Provides galvanic isolation via capacitive coupling technology
• Features a unidirectional signal path architecture
• Includes integrated shutdown functionality for power management

Applications

• General purpose digital signal isolation
• Industrial communication bus interfaces
• Power electronics control circuits

Procurement Notes

Verify the specific suffix IS1R to confirm reel packaging and pinout compatibility. Confirm RoHS compliance status through official documentation. Check the lifecycle status as NRND indicates the part is not recommended for new designs. Ensure moisture sensitivity handling procedures are followed during assembly.

Selection Notes

Select this component when unidirectional isolation with moderate speed requirements is needed. Compare against higher-speed variants like the SI8452BA if data rates exceed 1 Mb/s. Consider the 16-pin narrow SOIC footprint for board space constraints. Verify that the 1000 Vrms isolation rating meets system safety standards.

Part Context

This part belongs to the SI8452 series of digital isolators. It shares the same physical package and basic isolation principles as other members but differs in channel directionality and speed specifications. The AA suffix typically denotes the specific channel configuration and speed grade within the family.

Replacement Considerations

The SI8452BA-A-IS1R is a related high-speed variant with identical pinouts but faster data rates. Verify functional equivalence before substitution, noting differences in propagation delay and maximum data rate specifications.