SI8274DB1-IS1R

Isolators - Gate Drivers Overview

The SI8274DB1-IS1R is a single-channel, galvanically isolated gate driver from the Si827x series by Skyworks Solutions. It utilizes radio frequency coupling technology to provide high common-mode transient immunity and a 2.5 kVrms isolation voltage. The device features an SOIC-16 surface-mount package and supports PWM input signals with TTL logic compatibility. It operates within a temperature range of -40°C to +125°C and includes under-voltage lockout (UVLO) for reliable switching. Key electrical parameters include a maximum propagation delay of 105 ns, rise time of 16 ns, fall time of 18 ns, and a peak output current capability of 4 mA.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity for robust noise rejection in switching applications
• Galvanic isolation via RF coupling technology eliminating magnetic core saturation risks
• Integrated under-voltage lockout (UVLO) mechanism to prevent improper gate drive states

Isolators - Gate Drivers Applications

• Industrial motor control systems requiring isolated gate driving
• Power supply circuits utilizing high-frequency switching topologies
• Automotive electronics compliant with AEC-Q100 qualification standards

Isolators - Gate Drivers Procurement Notes

Verify that the specific suffix 'R' denotes the reel packaging variant rather than the tube configuration found in standard listings. Confirm the manufacturer part number matches exactly to ensure correct channel count and pinout alignment. Cross-reference the datasheet revision date to validate the technical specifications against current production versions.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with moderate speed requirements is needed. The 105 ns propagation delay suits applications where ultra-fast switching is not critical. Ensure the system design accommodates the 16-pin SOIC footprint and provides adequate thermal dissipation for the specified power loss limits during operation.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x family of digital isolators, which leverage silicon-based RF coupling for signal transmission. Unlike traditional optocouplers, these devices offer superior reliability and consistent performance over temperature variations. The SI8274DB1-IS1R represents the single-channel variant within this portfolio, designed for cost-effective isolation solutions.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes within the same family include the SI8274AB1-IM, though it differs in package type and channel configuration. Verify pin-to-pin compatibility and electrical parameter equivalence before swapping components to avoid redesign requirements.