SI8271GBD-ISR

Isolators - Gate Drivers Overview

The SI8271GBD-ISR is a single-channel, galvanically isolated gate driver from Skyworks Solutions. It utilizes capacitive coupling technology to provide high common-mode transient immunity (CMTI) and an isolation voltage of 2.5 kVrms. The device features a 3 V undervoltage lockout (UVLO), deglitching capability, and operates within a temperature range of -40°C to +125°C. Key electrical parameters include a maximum propagation delay of 75 ns, rise time of 16 ns, fall time of 18 ns, and peak output current of 4 A. It is housed in an 8-SOIC package.

Isolators - Gate Drivers Feature Summary

• High Common-Mode Transient Immunity for reliable signal transmission in noisy environments
• Integrated Deglitching Function to filter out short input pulses and prevent false triggering
• Capacitive Coupling Technology providing robust galvanic isolation without magnetic components

Isolators - Gate Drivers Applications

• Automotive power electronics systems requiring AEC-Q100 qualified components
• Motor control applications utilizing half-bridge or full-bridge topologies
• Industrial inverters and converters demanding high-speed switching with low latency

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'GBD' indicates the 3 V UVLO threshold and integrated deglitcher functionality, distinguishing it from other variants like the GBA or GA series. Confirm that the 'ISR' suffix corresponds to the tape-and-reel packaging format suitable for automated surface-mount assembly processes. Ensure compliance with RoHS standards and check for any specific handling instructions related to moisture sensitivity level 2A.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with high CMTI and automotive qualification is required. The 3 V UVLO setting makes it suitable for driving low-voltage logic interfaces while maintaining compatibility with higher gate drive voltages up to 30 V. Consider the 75 ns maximum propagation delay and 16/18 ns transition times for high-frequency switching applications where precise timing control is essential.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x family of digital isolators, which are designed for high-performance industrial and automotive applications. The family offers various configurations including single and dual drivers with different UVLO thresholds and insulation voltages. The Si8271GBD-ISR specifically targets applications needing robust isolation with enhanced noise immunity and simplified system design through integrated protection features.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes within the same manufacturer line include the SI8271GBD-AS, which shares identical electrical specifications but differs in packaging format (tube instead of reel). Other family members like the SI8271BBD-ISR offer similar isolation but may have different UVLO levels or performance characteristics; verify datasheet details before substitution.