SI8233BD-AS3R

Isolators - Gate Drivers Overview

The SI8233BD-AS3R is a galvanically isolated gate driver from the Si823x series, manufactured by Skyworks Solutions Inc. It features two independent high-side and low-side drivers with capacitive coupling technology. The device provides 5 kVrms isolation voltage and supports output supply voltages from 9.4 V to 24 V. It delivers peak output currents of 4 A (high) and 2 A (low). Key electrical parameters include a maximum propagation delay of 45 ns, rise/fall times of 12 ns, and a pulse width distortion of 5.6 ns. It operates within a temperature range of -40°C to +125°C and is housed in a 14-SOIC package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology enables high electromagnetic immunity and reliable signal transmission across the isolation barrier.
• Integrated undervoltage lockout (UVLO) protects against improper operation during power-up and power-down sequences.
• High common-mode transient immunity ensures stable performance in noisy switching environments.
• TTL-compatible inputs simplify interface design with standard logic controllers.

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 'AS3R' against the official Skyworks datasheet to confirm pinout and packaging details. Ensure compatibility with the required isolation voltage rating for your application. Check for RoHS compliance status and moisture sensitivity level before procurement. Confirm availability through authorized distributors as stock levels vary.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust isolation is required. The 5 kVrms rating suits applications demanding significant galvanic separation. Consider the 14-SOIC package size for space-constrained designs. Verify that the 4 A peak current meets the gate charge requirements of the target power devices.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers. These devices are designed for automotive and industrial applications requiring high reliability. The family utilizes silicon isolation technology to replace traditional magnetic transformers. The SI8233 variant specifically offers dual-channel configuration for half-bridge or full-bridge topologies.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks documentation for direct replacements within the Si823x series. Variants like SI8233BD-D-IS may offer different packaging options. Ensure any substitute maintains the 5 kVrms isolation rating and 4 A output current capability. Verify pin-to-pin compatibility if physical footprint constraints exist.