SI8275GA-AM1

Isolators - Gate Drivers Overview

The SI8275GA-AM1 is a dual-channel digital isolated gate driver manufactured by Skyworks Solutions Inc. It utilizes capacitive coupling technology to provide electrical isolation between input and output circuits. The device features a 1000Vrms isolation voltage rating and operates within a supply voltage range of 4.2V to 30V. It supports peak output currents of up to 4A, with typical rise and fall times of 10.5ns and 13.3ns respectively. Maximum propagation delay is specified at 60ns for both high-to-low and low-to-high transitions. The component is housed in a 14-QFN (5x5) surface-mount package and functions across an operating temperature range of -40°C to 125°C.

Isolators - Gate Drivers Feature Summary

• Dual-channel capacitive coupling isolation for high-speed signal transmission
• Integrated UVLO (Under-Voltage Lockout) protection mechanism
• High common-mode transient immunity capability
• Supports wide output supply voltage ranges for various gate drive applications

Isolators - Gate Drivers Applications

• Industrial motor control systems
• Power inverter topologies
• Solid-state transformer interfaces
• Isolated DC-DC converter control loops

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AM1' against official Skyworks documentation to confirm pinout compatibility and functional specifications, as suffixes often denote packaging or revision differences. Cross-reference with the latest datasheet to ensure the component meets current design requirements, noting that availability status may vary by region and distributor.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation with moderate speed (60ns delay) and 1kV isolation barrier is required. Ensure the application environment stays within the -40°C to 125°C operating range. Verify that the 4A peak drive current is sufficient for the target power switches. Confirm PCB layout constraints for the 14-QFN package fit the design footprint.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x series of digital isolators from Skyworks Solutions. The series leverages CMOS process technology combined with polyimide or silicon dioxide isolation barriers. The SI8275 variant specifically provides two independent channels, distinguishing it from single-channel counterparts like the SI8271. It is designed for robust performance in noisy industrial environments requiring reliable galvanic isolation.

Isolators - Gate Drivers Replacement Considerations

Official substitutes include other parts within the Si827x family such as the SI8275DA-IM1 or SI8275GB-IM1R, which offer similar dual-channel functionality but may differ in isolation voltage ratings (e.g., 2.5kV vs 1kV) or packaging types. Always verify parameter alignment before substitution.