SI88241BC-AS

Overview

The SI88241BC-AS is a high-speed automotive-grade digital isolator from Skyworks Solutions. It features four channels with three unidirectional forward paths and one reverse path, operating at data rates up to 100 Mb/s. The device provides 5000 Vrms isolation voltage and supports supply voltages between 3 V and 5.5 V. Key electrical parameters include an 18 ns propagation delay, 2.5 ns rise/fall times, and 4.5 ns pulse width distortion. It operates within a temperature range of -40°C to +125°C and lacks a shutdown function.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications.
• Capacitive coupling technology enables high common-mode transient immunity without magnetic interference.
• Integrated design eliminates the need for external bootstrap capacitors or isolated DC-DC converters.

Applications

• Motor control systems requiring robust signal isolation.
• Inverter gate drive interfaces in power electronics.
• Automotive battery management systems (BMS).

Procurement Notes

Verify the specific suffix 'BC-AS' against official Skyworks documentation to confirm the absence of a shutdown pin and the SOIC-20 package configuration. Ensure that the selected variant meets the required channel directionality and insulation voltage specifications for the target circuit design before finalizing procurement.

Selection Notes

Select this component when a four-channel isolator with asymmetric directionality is required. The lack of a shutdown feature distinguishes it from other variants in the series. Confirm compatibility with the system's voltage levels and thermal requirements, noting the wide operating temperature range suitable for harsh environments.

Part Context

This part belongs to the Si8824x family of digital isolators, which are designed for high-reliability applications. The family includes variants with integrated DC-DC converters and different channel configurations. The SI88241BC-AS specifically addresses needs for simple, high-speed isolation without complex power management integration.

Replacement Considerations

Direct substitutes within the same family include SI88241BD-AS and SI88241ED-AS. Verify functional differences such as the presence of shutdown pins or package variations before substitution.