SI82394CD-AS3R

Isolators - Gate Drivers Overview

The SI82394CD-AS3R is a dual-channel automotive-grade isolated gate driver from Skyworks Solutions, housed in a SOIC-Wide-14 package. It provides galvanic isolation with an insulation voltage of 3250 Vrms and supports a wide operating temperature range from -40°C to +125°C. The device features a maximum propagation delay of 40 ns, with rise and fall times of 12 ns each. It delivers a peak output current of 4 A at a supply voltage of 12 V, while consuming only 7.3 mA of quiescent current. Designed for high electromagnetic immunity, it utilizes non-inverting TTL logic inputs.

Isolators - Gate Drivers Feature Summary

• Automotive qualification ensuring reliability in demanding vehicle environments
• High electromagnetic immunity for robust signal integrity in noisy circuits
• Dual-channel design enabling simultaneous control of high-side and low-side switches

Isolators - Gate Drivers Applications

• Motor control systems requiring isolated drive signals
• Inverter topologies in electric vehicles and industrial drives
• Solid-state transformer applications needing high-voltage isolation

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing components. Confirm that the AS3 variant corresponds to the 3250 Vrms isolation rating rather than lower isolation options within the Si8239x family. Ensure compatibility with the intended PCB footprint for the SOIC-Wide-14 package before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when automotive certification and high common-mode transient immunity are required. The 4 A output capability suits medium-power switching applications. Compare against IS3 variants if industrial grade suffices, or AS variants if different isolation ratings are needed. Validate thermal performance given the 2.1 W power dissipation limit in the selected enclosure.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x series of digital isolators, which utilize Skyworks' proprietary silicon-on-insulator technology. The series offers various isolation voltages and channel configurations tailored for power electronics. The SI82394 specifically targets applications requiring dual independent channels with high-speed switching capabilities.

Isolators - Gate Drivers FAQ

What is the isolation voltage rating for the SI82394CD-AS3R?

The device provides an insulation voltage of 3250 Vrms.

Does this component support both high-side and low-side driving?

Yes, the dual-channel configuration allows for independent high-side and low-side gate drive control.