SI8235AB-D-IS1R

Isolators - Gate Drivers Overview

The SI8235AB-D-IS1R is a dual-channel digital isolator gate driver from Skyworks Solutions, utilizing capacitive coupling technology for galvanic isolation. It features a 2.5 kVrms isolation voltage rating and operates within a temperature range of -40°C to +125°C. The device provides a peak output current of 4A with typical rise and fall times of 12ns. Maximum propagation delay is specified at 45ns. It is housed in a 16-lead SOIC-Narrow package and holds AEC-Q100 qualification for automotive applications.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high electromagnetic immunity and reliable signal transmission across the isolation barrier.
• Dual-channel configuration supports independent control of high-side and low-side switches in power conversion circuits.
• Integrated undervoltage lockout (UVLO) protects connected devices by preventing operation under insufficient supply conditions.

Isolators - Gate Drivers Applications

• Industrial motor drives requiring isolated gate control
• Automotive power electronics and battery management systems
• Inverters and converters in renewable energy systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'D' indicates the correct pinout and isolation rating variant against the official datasheet. Confirm that the 'R' suffix corresponds to the tape-and-reel packaging format required for automated assembly processes. Ensure the component meets the necessary AEC-Q100 reliability standards if deployed in automotive environments.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated gate driver with 2.5 kVrms isolation is required. It is suitable for applications needing 4A peak drive capability and fast switching speeds. Consider the 16-SOIC-Narrow package dimensions for PCB layout constraints. Verify input logic compatibility and supply voltage requirements before integration into the design.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers from Skyworks Solutions. The family utilizes proprietary capacitive isolation technology to provide robust performance in noisy electrical environments. These drivers are designed to replace traditional transformer-based solutions, offering smaller form factors and higher reliability.

Isolators - Gate Drivers Replacement Considerations

SI8235BB-D-IS1R: Offers similar dual-channel functionality but typically specifies an 8V UVLO threshold compared to the 5V threshold of the AB variant. Verify UVLO requirements match the application's supply voltage profile before substituting.