SI82391CD-ISR

Isolators - Gate Drivers Overview

The SI82391CD-ISR is a dual-channel digital isolator gate driver from Skyworks Solutions, utilizing capacitive coupling technology for galvanic isolation. It operates within an extended temperature range of -40°C to +125°C and features a 5000 Vrms insulation voltage rating. The device provides a peak output current of 4 A with a maximum propagation delay of 40 ns and rise/fall times of 12 ns. It supports input voltages between 2.5 V and 5.5 V, consumes 7.2 mA of supply current, and dissipates up to 2.1 W of power. Packaged in a 16-SOIC form factor, it meets AEC-Q100 automotive qualification standards.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high electromagnetic immunity and reliable signal transmission across isolated domains.
• Automotive-grade qualification (AEC-Q100) supports deployment in demanding vehicle electronic environments.
• Dual-channel configuration allows simultaneous control of high-side and low-side switches with non-inverting logic.

Isolators - Gate Drivers Applications

• Automotive motor control systems requiring robust galvanic isolation
• Industrial inverters and converters utilizing high electromagnetic immunity
• Isolated power supply gate driving applications

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ISR' indicates tape-and-reel packaging when sourcing components. Confirm that the 5000 Vrms isolation rating aligns with system safety requirements. Ensure compatibility with the 16-SOIC footprint during PCB layout. Validate AEC-Q100 certification status if automotive compliance is mandatory for the final assembly.

Isolators - Gate Drivers Selection Notes

Select this component for designs requiring dual-channel isolation with high surge immunity. The 4 A peak drive capability suits medium-power switching applications. Consider the 12 ns transition speed for moderate-frequency operations. The wide operating temperature range facilitates use in harsh environmental conditions without derating concerns.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x family of isolated gate drivers. It shares core specifications with the SI82391CD-IS but differs in packaging format. The series emphasizes reliability through silicon dioxide-based capacitive isolation, offering superior performance over magnetic or optical alternatives in noisy environments.

Isolators - Gate Drivers Replacement Considerations

The SI82391CD-IS serves as a tube-packaged alternative within the same functional family. Verify pinout compatibility and package dimensions before substitution. Ensure the replacement meets the required isolation voltage and thermal specifications for the target application.