SI8232AC-D-IS1R

Isolators - Gate Drivers Overview

The SI8232AC-D-IS1R is a dual-channel isolated gate driver from Skyworks Solutions, utilizing capacitive coupling technology for galvanic isolation. It features a 3750Vrms insulation voltage and operates within a temperature range of -40°C to +125°C. The device provides peak output currents of 250mA (high) and 500mA (low), with maximum propagation delays of 45ns and rise/fall times of 20ns. Packaged in a 16-SOIC narrow body, it supports input voltages between 4.5V and 5.5V and output supply voltages from 6.5V to 24V. It holds AEC-Q100 qualification and carries CQC, CSA, UR, and VDE certifications.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology ensures high electromagnetic immunity and reliable signal transmission across the isolation barrier.
• Dual independent channels provide flexible configuration for half-bridge or full-bridge power switching applications.
• Integrated undervoltage lockout protects against improper operation during low supply conditions.

Isolators - Gate Drivers Applications

• Industrial motor drives and inverters
• High-voltage power supplies and converters
• Solar microinverters and grid-tied systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS1R confirms the reel packaging format required for automated surface-mount assembly. Confirm that the AC designation aligns with the required 3750Vrms isolation rating and that the 16-SOIC narrow package dimensions fit the target PCB footprint. Ensure compatibility with the system's logic voltage levels and thermal management requirements for the specified operating temperature range.

Isolators - Gate Drivers Selection Notes

Select this component when high common-mode transient immunity is critical for noise-sensitive environments. The dual-channel architecture simplifies design compared to single-channel alternatives. Consider the 500mA peak current capability for driving medium-power MOSFETs or IGBTs. Verify that the 3750Vrms isolation level meets the safety standards required by the end application.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers, which are designed for robust performance in harsh electrical environments. The family utilizes Skyworks' proprietary capacitive isolation technology, offering advantages over traditional magnetic isolation methods such as smaller size and higher reliability. The SI8232 variant specifically addresses dual-channel needs with symmetric timing characteristics.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include other variants within the SI8232 series, such as SI8232BB-D-IS1R, though differences in isolation voltage (2.5kV vs 3.75kV) and UVLO thresholds must be evaluated. Cross-family replacements require careful verification of pinout compatibility, isolation ratings, and drive strength specifications.