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SI8231AD-B-IS is listed in the Isolators - Gate Drivers range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is DGTL ISO 5KV 2CH GATE DVR 16SOIC. Review the specifications below when checking this part for your BOM.
The SI8231AD-B-IS is a galvanically isolated gate driver from the Si823x series, manufactured by Skyworks Solutions Inc. It features a dual-channel configuration with high-side and low-side outputs in a 16-SOIC package. The device provides 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 20 ns, and a peak output current of 500 mA. It utilizes TTL logic inputs and has a typical operating supply current of 3.5 mA.
Verify the specific suffix 'B' against official Skyworks documentation to confirm insulation rating and UVLO specifications. Confirm package type and pinout compatibility with target PCB layout. Check for obsolescence status as this part may be discontinued or replaced by newer revisions within the Si823x family.
Select this component when 5 kVrms isolation is required for dual-channel gate driving. Ensure the input logic levels match the TTL specification. Verify that the thermal dissipation capabilities of the SOIC-Wide-16 package suit the application's power budget. Compare against automotive-rated variants if AEC-Q100 qualification is mandatory.
This device belongs to the Si823x family of isolated gate drivers. It shares architectural similarities with other members like the SI8231AD-D-IS but differs in insulation ratings and internal thresholds. The family is designed for robust performance in electric vehicles and industrial automation systems requiring reliable signal transmission across isolation barriers.
Public records indicate the SI8231AD-B-IS is obsolete. The direct substitute is the SI8231AD-D-IS.
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