SI82398CD4-ASR

Isolators - Gate Drivers Overview

The SI82398CD4-ASR is a dual-channel digital isolated gate driver from Skyworks Solutions, utilizing capacitive coupling technology for galvanic isolation. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers a peak output current of 4 A with a 12 V output level. The device features a maximum propagation delay of 40 ns, with rise and fall times of 12 ns each. It provides an insulation voltage of 2500 Vrms and functions reliably across an operating temperature range of -40 °C to +125 °C. Power dissipation is rated at 2.1 W, and it is housed in a 16-SOIC package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling architecture ensures high electromagnetic immunity and robust signal integrity in noisy environments.
• Dual-channel configuration allows simultaneous control of high-side and low-side switches with matched timing characteristics.
• Integrated under-voltage lockout (UVLO) protects the driver and connected power devices from improper operation during power transitions.

Isolators - Gate Drivers Applications

• Automotive motor control systems requiring high reliability and thermal stability.
• Industrial inverters and converters needing galvanic isolation between control logic and power stages.
• High-frequency switching power supplies where fast transient response and noise rejection are critical.

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ASR' against official Skyworks documentation to confirm tape-and-reel packaging and automotive-grade qualification status. Ensure compatibility with your PCB footprint for the 16-SOIC wide package. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation with 2500 Vrms capability is required for automotive or industrial applications. Compare propagation delay and output current requirements against alternative drivers if higher speed or current is needed. Confirm that the 16-SOIC package dimensions fit the design constraints and that the 2.1 W power dissipation rating aligns with the thermal management strategy.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x family of isolated gate drivers, which leverages Skyworks' proprietary capacitive isolation technology. The family offers various channel counts and insulation ratings tailored for different power electronics applications. The SI82398 variant specifically targets dual-channel needs with automotive qualification options.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks datasheets for other Si8239x variants such as SI82398CD-IS3R for higher insulation ratings or SI82394CD4-AS for similar performance in tube packaging. Verify pin-to-pin compatibility and electrical parameters before substituting.