SI82391AD-IS3

Isolators - Gate Drivers Overview

The SI82391AD-IS3 is a dual-channel, galvanically isolated gate driver from the Si8239x series by Skyworks Solutions. It features capacitive coupling for signal and power transmission across isolation barriers. The device provides a peak output current of 4 A with a maximum propagation delay of 40 ns. It operates within an extended temperature range of -40°C to +125°C and includes a 6 V undervoltage lockout (UVLO). The component is housed in a 14-pin SOIC-Wide package and is qualified under AEC-Q100 standards for automotive applications.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high electromagnetic immunity and reliable signal transmission.
• Dual-channel configuration supports independent control of multiple switching devices.
• Integrated undervoltage lockout protects connected loads from improper operation.

Isolators - Gate Drivers Applications

• Industrial motor drives
• Automotive power electronics
• Inverter systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS3 against official Skyworks documentation to confirm the tape-and-reel packaging variant. Ensure the order matches the exact part number to avoid discrepancies in reel quantity or handling specifications. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance status or recommended soldering profiles prior to procurement.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust noise immunity is required. The 4 A drive strength suits medium-power MOSFETs and IGBTs. Verify that the system voltage does not exceed the 3250 Vrms isolation rating. Consider the 14-SOIC package dimensions for PCB layout constraints and thermal management requirements during the design phase.

Isolators - Gate Drivers Part Context

This device belongs to the Si8239x family of isolated gate drivers. It utilizes Skyworks' proprietary iCoupler technology for digital isolation. The family offers various channel counts and isolation ratings. This specific model focuses on dual-channel performance with automotive qualification, distinguishing it from single-channel or non-automotive variants in the same product line.

Isolators - Gate Drivers Replacement Considerations

Check for SI82391BD-IS3 if an 8 V UVLO threshold is preferred instead of 6 V. Verify pin compatibility before substituting other dual-channel isolated drivers. Confirm that alternative components meet the same AEC-Q100 reliability standards and isolation voltage requirements.

Isolators - Gate Drivers FAQ

What type of isolation technology does the SI82391AD-IS3 use?

It uses capacitive coupling technology for galvanic isolation between input and output channels.

Is the SI82391AD-IS3 suitable for automotive applications?

Yes, the component is qualified according to the AEC-Q100 standard for automotive use.