SI8231BC-AS1R

Isolators - Gate Drivers Overview

The SI8231BC-AS1R is a galvanically isolated gate driver from the Si823x series, manufactured by Skyworks Solutions. It integrates two independent drivers in a single SOIC-Narrow-16 package. Key electrical parameters include an isolation voltage of 3.75 kVrms and a maximum propagation delay of 45 ns. The device features rise and fall times of 20 ns each, with a peak output current capability of 500 mA. It operates within a temperature range of -40°C to +125°C and dissipates up to 1.2 W of power.

Isolators - Gate Drivers Feature Summary

• Combines two independent, isolated drivers into a single package for high-side and low-side applications
• Provides high electromagnetic immunity suitable for industrial environments
• Features UVLO (Under-Voltage Lockout) functionality for reliable operation

Isolators - Gate Drivers Applications

• Industrial motor control systems
• Power supply gate driving
• Inverter circuits requiring galvanic isolation

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AS1R' against official Skyworks documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with the required SOIC-Narrow-16 footprint during PCB layout. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated driver with 3.75 kVrms isolation is required. The 500 mA output current supports standard MOSFET and IGBT switching speeds. Consider the 45 ns propagation delay for timing-sensitive applications. The wide operating temperature range makes it suitable for harsh industrial conditions compared to lower-grade alternatives.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated drivers, which utilizes silicon dioxide (SiO2) insulation technology. This family replaces traditional optocouplers, offering improved performance in terms of speed and reliability. The SI8231 variant specifically targets applications needing both high-side and low-side drive capabilities within a compact form factor.

Isolators - Gate Drivers Replacement Considerations

Direct replacements within the same series include SI8231BC-D-IS1R and SI8231BC-AS3R, differing primarily in packaging or reel configuration. Verify pinout compatibility and isolation voltage ratings when substituting with other Si823x models.