SI8234AB-D-IS

Isolators - Gate Drivers Overview

The SI8234AB-D-IS is a dual-channel galvanically isolated gate driver from the Si823x series, manufactured by Skyworks Solutions Inc. It features a SOIC-Narrow-16 surface-mount package and supports high-side and low-side configurations. The device provides 2.5 kVrms isolation voltage and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a maximum propagation delay of 45 ns, rise and fall times of 12 ns, and a peak output current of 4 A. It is designed for industrial applications with high electromagnetic immunity.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between input and output circuits
• Supports high-side and low-side driving configurations
• Features high electromagnetic immunity for robust operation
• Includes under-voltage lockout (UVLO) protection

Isolators - Gate Drivers Applications

• Industrial motor drives
• Inverter systems
• Power supply control

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'D' indicates the 2.5 kVrms isolation rating distinct from other variants. Confirm the '-IS1' or similar suffix requirements for automotive qualification if applicable to your design. Ensure the SOIC-16 package dimensions match your PCB footprint constraints. Check for RoHS compliance status in the latest datasheet revision before finalizing procurement.

Isolators - Gate Drivers Selection Notes

Select this component when 2.5 kVrms isolation is sufficient for the application, offering a cost-effective alternative to higher-rated models. The 4 A peak drive current suits medium-power IGBTs and MOSFETs. Consider the 45 ns propagation delay for switching frequency requirements. Verify compatibility with TTL logic inputs and 5 V UVLO thresholds against the system's control voltage levels.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers, which utilize capacitive coupling technology for signal transmission. The family includes variants with different isolation ratings, such as 2.5 kVrms and 5 kVrms options. The SI8234AB-D-IS specifically targets industrial environments requiring reliable performance under harsh electromagnetic conditions.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes may include SI8234AC-AS1 or SI8234BC-AS1, though these typically feature 3.75 kVrms isolation. Verify that the increased isolation rating does not impact board layout or regulatory approvals. Ensure pinout compatibility remains identical across the Si8234 series variants.