SI8271BB-AS

Isolators - Gate Drivers Overview

The SI8271BB-AS is a single-channel, automotive-grade galvanically isolated gate driver from Skyworks Solutions. It utilizes silicon isolation technology to provide 2.5 kVRMS insulation voltage and supports an input voltage range of 2.5 V to 5.5 V with TTL logic compatibility. The device features a maximum propagation delay of 75 ns, with rise and fall times of 16 ns and 18 ns respectively. It delivers a peak output current of 4 mA and operates within a temperature range of -40°C to +125°C. Power dissipation is rated at 1.1 W, and it is housed in an SOIC-8 surface-mount package.

Isolators - Gate Drivers Feature Summary

• Automotive-grade qualification for high reliability applications
• High common-mode transient immunity (CMTI) capability
• Integrated deglitching filter for noise suppression
• Programmable dead-time control

Isolators - Gate Drivers Applications

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

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm the exact tape-and-reel packaging configuration and lead-free status. Ensure that the automotive grade designation aligns with project requirements by cross-referencing the AEC-Q100 certification details provided in the manufacturer's datasheet.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with automotive reliability is required. The integrated deglitching feature simplifies design by filtering spurious signals without external components. Consider the 4 mA output drive strength relative to the target switch capacitance to ensure adequate switching speeds within the specified delay parameters.

Isolators - Gate Drivers Part Context

This part belongs to the Si8271 series of high-speed, low-latency isolated gate drivers. The series leverages Skyworks' proprietary silicon isolation technology to replace traditional optocouplers, offering superior performance in terms of speed, consistency, and lifetime. The 'BB' variant specifically denotes the automotive grade version with enhanced transient immunity characteristics.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include other variants within the Si8271 family such as the SI8271BBD-IS or SI8271BB-ISR, depending on the required packaging format. Verify pinout compatibility and electrical specifications before substitution.