SI8274GB1-AM1R

Isolators - Gate Drivers Overview

The SI8274GB1-AM1R is a dual-channel, current-isolated gate driver from Skyworks Solutions. It features a 2500 Vrms isolation voltage and high CMTI. The device operates with a 3 V UVLO and accepts PWM inputs. Key electrical parameters include a maximum propagation delay of 75 ns, rise time of 10.5 ns, and fall time of 13.3 ns. It supports output currents up to 4 A and functions within a temperature range of -40°C to +125°C. The component is housed in a 14-DFN (5x5) package and supplied in tape and reel format.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity for reliable signal transmission in noisy environments
• Current-based isolation technology providing robust galvanic separation between input and output circuits
• Integrated under-voltage lockout ensures stable operation by preventing partial switching during power-up

Isolators - Gate Drivers Applications

• Industrial motor drives requiring high-speed switching
• Inverter systems in renewable energy applications
• Isolated power supply control circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AM1R corresponds to the tape and reel packaging configuration when sourcing. Confirm that the 3 V UVLO threshold aligns with your system's low-side logic requirements. Ensure the 14-DFN footprint matches your PCB layout constraints. Cross-reference the datasheet revision date to confirm compatibility with current design specifications.

Isolators - Gate Drivers Selection Notes

Select this model for applications demanding high CMTI and fast switching speeds in a compact surface-mount package. The dual-channel configuration allows for half-bridge or full-bridge topologies. Consider the 4 A peak output capability for driving medium-power MOSFETs or IGBTs. Verify thermal management needs given the DFN package type.

Isolators - Gate Drivers Part Context

This component belongs to the Si8274 series of isolated gate drivers. It utilizes Skyworks' proprietary RF coupling technology for signal transmission across the isolation barrier. The series is designed for industrial and automotive-grade applications requiring high reliability and noise immunity compared to traditional optical isolators.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.