SI8273GB-IM1R

Isolators - Gate Drivers Overview

The SI8273GB-IM1R is a dual-channel galvanically isolated gate driver from Skyworks Solutions. It features a 2500 Vrms isolation voltage and supports a minimum operating temperature of -40°C with a maximum of +125°C. The device provides a peak output current of 4 mA and operates at an output voltage of 3 V. It exhibits a common-mode transient immunity (CMTI) of 200 kV/µs and includes a 3 V under-voltage lockout (UVLO). The component is housed in a DFN-14 package and utilizes reel packaging for surface-mount installation.

Isolators - Gate Drivers Feature Summary

• Provides high-speed switching capabilities through dual-channel digital isolation
• Ensures robust signal integrity via high common-mode transient immunity
• Integrates under-voltage lockout functionality for reliable operation

Isolators - Gate Drivers Applications

• Industrial motor control systems
• Power supply gate driving
• Inverter applications

Isolators - Gate Drivers Procurement Notes

Verify the specific ordering suffix to confirm the exact package type and tape-and-reel configuration. Ensure compatibility with the target PCB footprint and thermal requirements. Confirm that the isolation voltage rating meets the system's safety standards. Validate the operating temperature range against environmental conditions. Check for RoHS compliance status if required by project specifications.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching and strong noise immunity are required in isolated power stages. The dual-channel design simplifies layout for half-bridge or full-bridge topologies. Consider the 4 mA output current capability relative to the gate charge requirements of the target power devices. Evaluate the 2500 Vrms isolation barrier for appropriate creepage and clearance distances in the final assembly.

Isolators - Gate Drivers Part Context

This part belongs to the Si8273 family of galvanically isolated gate drivers. The series is designed for applications requiring high reliability and fast switching speeds. The GB suffix typically denotes specific performance characteristics within the product line. The IM1R suffix indicates the specific package variant and reel packaging format used for automated assembly processes.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes may include other models within the Si8273 family, such as the SI8273AB-IM3, provided they match the required channel count and isolation voltage. Verify pinout compatibility before substitution. Ensure that any replacement component offers equal or superior CMTI ratings to maintain system noise immunity.