SI82391CB-IS1

Isolators - Gate Drivers Overview

The SI82391CB-IS1 is a dual-channel, high-speed digital isolator from Skyworks Solutions Inc., designed as an isolated gate driver. It utilizes capacitive coupling technology to provide electrical isolation between input and output sides. The device features a 2500 Vrms voltage isolation rating and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a maximum propagation delay of 40 ns, rise and fall times of 12 ns each, and a peak output current capability of 4 A. It supports a supply voltage up to 12 V with a 12 V Under-Voltage Lockout (UVLO) threshold. The component is housed in a 16-pin SOIC-Narrow package and is qualified under the AEC-Q100 standard for automotive applications.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology provides robust signal isolation without magnetic components
• High common-mode transient immunity ensures reliable operation in noisy environments
• Integrated 12 V UVLO protects connected power devices from improper driving conditions
• AEC-Q100 qualification supports deployment in automotive electronic systems

Isolators - Gate Drivers Applications

• Automotive electric vehicle motor control inverters
• Industrial motor drive systems requiring galvanic isolation
• High-frequency switching power supply gate driving
• Inverter bridge circuits in renewable energy converters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS1 against official Skyworks documentation to confirm the reel packaging configuration and tape-and-reel specifications. Ensure the procurement order explicitly references the full part number SI82391CB-IS1 to distinguish it from other variants in the Si8239x family that may differ in insulation ratings or package types. Cross-reference the manufacturer's latest datasheet revision to confirm compliance with current RoHS directives and material declarations before finalizing purchase orders.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated gate driver with 2500 Vrms isolation is required for high-speed switching applications. The 4 A output current capability suits medium-power IGBT and MOSFET drivers. Consider the 12 V UVLO feature if protecting against low-voltage lockout conditions is critical. The SOIC-Narrow-16 package offers a compact footprint suitable for dense PCB layouts. Verify thermal dissipation requirements given the 2 W power dissipation rating at elevated temperatures.

Isolators - Gate Drivers Part Context

This device belongs to the Si8239x series of isolated gate drivers from Skyworks Solutions. The series leverages silicon dioxide (SiO2) based capacitive isolation technology, offering superior performance over traditional transformer-based isolators in terms of size and reliability. The Si8239x family is engineered for demanding industrial and automotive environments, providing high common-mode rejection and long-term stability.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult Skyworks Solutions technical support for validated equivalents.