SI8234BB-AS1R

Isolators - Gate Drivers Overview

The SI8234BB-AS1R is a half-bridge based IGBT/MOSFET gate driver manufactured by Skyworks Solutions Inc. It features two completely isolated drivers within a single package, providing up to 5 kVRMS input-to-output isolation and up to 1500 VDC peak driver-to-driver isolation. The device operates with a supply voltage range of 4.5 V to 5.5 V and delivers a nominal output peak current of 4 A. It is housed in a PDSO16 (SOIC-16) plastic/epoxy package with a maximum height of 1.75 mm. The component supports an operating temperature range from -40 °C to +125 °C and meets AEC-Q100 qualification standards.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between control circuitry and power switches using capacitive coupling technology.
• Integrates two independent high-side and low-side drivers in a compact surface-mount package.
• Supports robust insulation ratings for high-voltage applications with specified peak isolation voltages.

Isolators - Gate Drivers Applications

• Industrial motor drives requiring isolated gate control
• Inverter circuits in renewable energy systems
• High-voltage switching applications in power supplies

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R against the manufacturer's official datasheet to confirm pinout configuration and tape-and-reel specifications. Ensure that the required isolation voltage ratings align with your system's safety standards. Cross-reference the SOIC-16 package dimensions with your PCB footprint library to guarantee mechanical compatibility during assembly.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolated driving is required within a single package footprint. Consider the 4 A peak current capability for driving medium-power MOSFETs or IGBTs. Evaluate the 5 kVRMS isolation rating against the system's creepage and clearance requirements. Verify that the 4.5 V to 5.5 V supply range matches the available logic voltage rails in the design.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x series of isolated gate drivers from Skyworks Solutions. The series utilizes capacitive isolation technology to replace traditional magnetic transformers, offering higher reliability and smaller form factors. The SI8234 variant specifically addresses half-bridge configurations, integrating both high-side and low-side drive channels for simplified board layout.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions technical support for qualified alternatives or cross-reference with other manufacturers' isolated gate driver families if necessary.