SI8235-B-IS

Isolators - Gate Drivers Overview

The SI8235-B-IS is a dual isolated gate driver from Skyworks Solutions, utilizing capacitive coupling technology for galvanic isolation. It features a 2500Vrms isolation voltage and operates within an automotive-grade temperature range of -40°C to +125°C. The device provides two independent channels with peak output currents of 4A. Key electrical parameters include a maximum propagation delay of 60ns and typical rise/fall times of 12ns. It supports input voltages up to 5.5V and includes an 8V UVLO feature.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high electromagnetic immunity and reliable signal transmission across the isolation barrier.
• Automotive qualification (AEC-Q100) supports deployment in demanding vehicular environments.
• Dual-channel configuration allows simultaneous control of high-side and low-side switches.

Isolators - Gate Drivers Applications

• Motor drive systems requiring isolated gate control
• Inverter circuits in electric vehicle powertrains
• Industrial motor controllers

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout and electrical specifications. Ensure the component meets AEC-Q100 requirements if used in automotive applications. Cross-reference the package type and isolation voltage ratings with system design constraints before procurement.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust isolation is required. The 4A peak current capability suits driving medium-power MOSFETs or IGBTs. Consider the 2500Vrms isolation rating relative to the system's working voltage. Verify compatibility with the controller logic levels and required propagation delay characteristics.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers. The series is designed for industrial and automotive applications requiring high reliability. The family utilizes Skyworks' proprietary capacitive isolation process to provide superior performance compared to traditional magnetic or optical isolation methods.

Isolators - Gate Drivers Replacement Considerations

Check for direct substitutes such as SI8235BB-D-IS or SI8235BD-D-ISR. Verify that alternative parts match the 2500Vrms isolation rating, 4A output current, and 16-SOIC package dimensions. Confirm AEC-Q100 compliance if automotive usage is intended.