SI8231AC-D-IS1

Isolators - Gate Drivers Overview

The SI8231AC-D-IS1 is a dual-channel, galvanically isolated gate driver from the Si823x series by Skyworks Solutions. It features capacitive coupling for signal transmission and provides high electromagnetic immunity. The device operates with a 5 V undervoltage lockout (UVLO) and supports both high-side and low-side configurations. Key electrical parameters include a maximum propagation delay of 45 ns, rise and fall times of 20 ns, and an output current capability of 500 mA. It offers 3.75 kVrms isolation voltage and functions within a temperature range of -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Provides complete galvanic isolation between input and output sides using advanced capacitive coupling technology.
• Delivers high electromagnetic interference (EMI) immunity suitable for noisy industrial environments.
• Integrates two independent drivers in a single package for efficient high-side and low-side switching control.

Isolators - Gate Drivers Applications

• Industrial motor drives requiring robust isolation
• Power supply systems needing reliable gate control
• Inverter circuits in renewable energy applications

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AC' indicates the 3.75 kVrms isolation rating and 5 V UVLO configuration. Confirm the 'D' suffix corresponds to the SOIC-Narrow-16 package variant. Ensure compatibility with TTL logic inputs as specified. Check for AEC-Q100 qualification if automotive-grade reliability is required for the application environment.

Isolators - Gate Drivers Selection Notes

Select this component when 3.75 kVrms isolation is sufficient for the system's safety requirements. The 500 mA peak output current suits medium-power MOSFETs and IGBTs. Consider the SOIC-Narrow-16 footprint for PCB layout constraints. Compare against higher isolation variants like the AD series if greater voltage ratings are necessary for the specific circuit topology.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers, which utilize Skyworks' proprietary capacitive isolation technology. The family includes variants with different isolation voltages and UVLO thresholds to accommodate various power electronics designs. The SI8231AC-D-IS1 specifically targets applications requiring moderate isolation levels with fast switching speeds.

Isolators - Gate Drivers FAQ

What type of isolation technology does the SI8231AC-D-IS1 use?

It uses capacitive coupling technology to provide galvanic isolation between the input and output sections.

Is the SI8231AC-D-IS1 qualified for automotive applications?

Yes, the device is AEC-Q100 qualified, making it suitable for automotive-grade electronic systems.