SI823H4BD-AS3R

Isolators - Gate Drivers Overview

The SI823H4BD-AS3R is a galvanically isolated gate driver from the Si823Hx series, manufactured by Skyworks Solutions. It features a dual-channel configuration with high-side and low-side drivers housed in a WB SOIC-14 package. The device provides 5 kV isolation capability and operates within an automotive temperature range of -40°C to +125°C. Key electrical parameters include a maximum propagation delay of 30 ns, rise and fall times of 12 ns, and a supply voltage range of 3 V to 5.5 V. It delivers a peak output current of 5.9 mA and supports TTL logic inputs.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation for high-side and low-side gate driving applications
• Designed for automotive environments with extended temperature operation
• Features non-inverting logic configuration for direct signal control

Isolators - Gate Drivers Applications

• Automotive power electronics systems
• High-side and low-side MOSFET or IGBT switching
• Isolated motor drive circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS3R indicates reel packaging when sourcing components. Confirm that the part meets AEC-Q100 automotive qualification requirements if applicable to your design. Ensure compatibility with the WB SOIC-14 footprint during PCB layout. Cross-reference datasheet revisions to confirm parameter stability before finalizing procurement specifications.

Isolators - Gate Drivers Selection Notes

Select this component for designs requiring robust isolation between control and power stages. The dual-channel architecture simplifies half-bridge implementations. Consider the 30 ns propagation delay for switching frequency limitations. Verify input logic levels match the system's TTL standards. Ensure thermal management aligns with the specified operating temperature range.

Isolators - Gate Drivers Part Context

This part belongs to the Si823Hx family of isolated gate drivers. It shares core technology with variants like SI823H1BD and SI823H6BD but differs in packaging and specific electrical characteristics. The family targets industrial and automotive markets requiring reliable signal transmission across isolation barriers.

Isolators - Gate Drivers Replacement Considerations

SI823H4BD-AS3 is a tube-packaged equivalent within the same series. SI823H1BD-AS3 offers similar performance in a standard SOIC-14 package. Verify pinout compatibility and isolation voltage ratings when substituting.