SI8271DBD-ISR

Isolators - Gate Drivers Overview

The SI8271DBD-ISR is a single-channel isolated gate driver from Skyworks Solutions, utilizing silicon isolation technology for high common-mode transient immunity. It features a maximum propagation delay of 75 ns, with rise and fall times of 16 ns and 18 ns respectively. The device operates within an input voltage range of 2.5 V to 5.5 V and provides an output current of 4 mA. It supports an insulation voltage of 2.5 kVrms and functions across a temperature range of -40°C to +125°C. Packaged in an 8-SOIC format on a tape and reel, it dissipates up to 1.1 W.

Isolators - Gate Drivers Feature Summary

• Utilizes silicon-based digital isolation technology to achieve high common-mode transient immunity.
• Incorporates programmable dead-time control to prevent shoot-through in power switches.
• Includes under-voltage lockout (UVLO) functionality for reliable operation monitoring.

Isolators - Gate Drivers Applications

• Switch-mode power supplies
• Solar inverters
• Motor control systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ISR' confirms the tape and reel packaging configuration required for automated surface-mount assembly processes. Confirm that the AEC-Q100 qualification status aligns with automotive or industrial reliability standards. Ensure the SOIC-8 package dimensions match the target PCB footprint design constraints before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed signal transmission with low latency is critical for power stage control. The 4 mA output current is suitable for driving smaller MOSFETs or IGBTs directly. Consider the 2.5 kVrms isolation barrier for applications requiring galvanic separation between control logic and high-voltage power circuits.

Isolators - Gate Drivers Part Context

This part belongs to the Si8271 series of isolated gate drivers designed for industrial and automotive applications. It replaces traditional optocouplers by offering superior speed and reliability through silicon dioxide isolation layers. The series supports various packaging options including tubes and reels to accommodate different manufacturing needs.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include other variants within the Si8271 family such as SI8271DB-IS or SI8271GB-ISR, depending on required packaging type. Verify pin compatibility and electrical specifications against original datasheets before substitution.

Isolators - Gate Drivers FAQ

What is the maximum propagation delay of the SI8271DBD-ISR?

The maximum propagation delay is specified as 75 ns.

Does the SI8271DBD-ISR support programmable dead-time?

Yes, the device includes programmable dead-time control features.