SI82397BD-IS3

Isolators - Gate Drivers Overview

The SI82397BD-IS3 is a dual-channel galvanically isolated gate driver from the Si8239x series, manufactured by Skyworks Solutions. It features capacitive coupling technology with a 3250 Vrms isolation voltage and an 8 V undervoltage lockout (UVLO). The device operates within a temperature range of -40°C to +125°C and is AEC-Q100 qualified for automotive applications. Key electrical parameters include a maximum propagation delay of 40 ns, rise and fall times of 12 ns each, and a peak output current of 4 A. It consumes 5.6 mA of operating supply current and dissipates up to 2.1 W of power. The component is housed in a 14-pin SOIC-Wide package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling provides high electromagnetic immunity and reliable signal transmission across isolation barriers.
• Dual independent channels allow simultaneous control of multiple power switches with precise timing.
• Integrated undervoltage lockout protects connected devices from improper operation during low supply conditions.

Isolators - Gate Drivers Applications

• Automotive electric vehicle motor drives
• Industrial inverters and converters
• High-frequency switching power supplies

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS3 against official Skyworks documentation to confirm pinout compatibility and insulation ratings. Ensure the procurement source provides valid RoHS compliance certificates and AEC-Q100 qualification records. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit components. Confirm that the packaging type matches project requirements for surface-mount assembly processes.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust noise immunity is required in isolated environments. The 4 A output current capability supports driving medium-power MOSFETs or IGBTs efficiently. Consider the 14-pin SOIC-Wide package for PCB layout constraints requiring wider creepage distances. The automotive qualification makes it suitable for harsh operational environments where reliability is critical.

Isolators - Gate Drivers Part Context

This device belongs to the Si8239x family of isolated gate drivers, which utilize Skyworks' proprietary capacitive isolation technology. This family replaces traditional magnetic isolators by offering smaller form factors and higher reliability. The SI82397 variant specifically addresses dual-channel applications, providing symmetric performance for half-bridge or full-bridge topologies commonly found in modern power electronics systems.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Verify functional equivalence with other Skyworks Si823xx series variants if pinout compatibility allows. Consult official replacement guides for any discontinued legacy parts before finalizing design changes.