SI8233AC-AS1

Isolators - Gate Drivers Overview

The SI8233AC-AS1 is a dual-channel, galvanically isolated gate driver from the Si823x series by Skyworks Solutions. It features a high-side and low-side configuration in a 16-pin SOIC-Narrow package. The device supports an input voltage range of 4.5 V to 5.5 V and delivers a peak output current of 4 A at 5 V. Key electrical parameters include a maximum propagation delay of 45 ns, with rise and fall times of 12 ns each. It provides 3.75 kVrms isolation voltage and operates within a temperature range of -40°C to +125°C, with a power dissipation rating of 1.2 W.

Isolators - Gate Drivers Feature Summary

• High electromagnetic immunity for robust signal integrity in noisy environments
• Automotive qualification compliant for reliable operation in vehicle applications
• Integrated UVLO (Under-Voltage Lockout) for safe startup and shutdown protection

Isolators - Gate Drivers Applications

• Motor drive and control systems
• Industrial power management circuits
• Isolated MOSFET and IGBT gate driving

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1 against the official Skyworks datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure compatibility with the target PCB footprint, specifically the SOIC-Narrow-16 package dimensions. Confirm that the automotive grade and high EMI immunity specifications align with the final application environment standards before procurement.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with minimal delay is required alongside strong noise immunity. The 4 A output current capability suits medium-power MOSFETs and IGBTs. Consider the 3.75 kVrms isolation barrier for safety-critical interfaces. Compare against other Si823x variants if different output currents or isolation voltages are needed for the specific system architecture.

Isolators - Gate Drivers Part Context

Part of the Si823x family of isolated gate drivers utilizing silicon-based isolation technology. This series offers high integration and small form factors compared to traditional optocouplers. The SI8233AC-AS1 specifically targets automotive and industrial sectors requiring high reliability and fast switching speeds within a compact surface-mount package.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks documentation for direct cross-references such as SI8233BC-AS1 or SI8233BD-D-ISR, noting differences in output current, isolation voltage, or package type. Verify that any substitute maintains the required 45 ns propagation delay and 4 A peak current capabilities.