SI8274BB4D-AS1R

Isolators - Gate Drivers Overview

The SI8274BB4D-AS1R is a single-channel automotive-grade digital isolator gate driver manufactured by Skyworks Solutions. It provides galvanic isolation with a maximum insulation voltage of 2.5 kVrms and operates within a temperature range of -40°C to +125°C. The device features a maximum propagation delay of 105 ns, with rise and fall times of 16 ns and 18 ns respectively. It supports input voltages between 2.5 V and 5.5 V and delivers an output voltage of 8 V. Packaged in a SOIC-16 surface-mount format on a reel, it dissipates up to 1.2 W of power.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity for reliable signal transmission in electrically noisy environments
• Integrated under-voltage lockout (UVLO) mechanism ensures stable driver operation during power transitions
• Automotive qualification compliant with AEC-Q100 standards for durability in vehicle applications

Isolators - Gate Drivers Applications

• Motor control systems requiring isolated high-side and low-side driving
• Inverter circuits in electric vehicles and hybrid electric vehicles
• Industrial motor drives and power conversion equipment

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R confirms the tape and reel packaging configuration required for automated assembly processes. Ensure the component meets AEC-Q100 automotive reliability standards for your target application environment. Cross-reference the datasheet to confirm the 8 V output level matches your gate drive requirements. Validate that the SOIC-16 footprint aligns with your PCB layout constraints before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with minimal latency is critical for power electronics. The integrated UVLO feature simplifies system design by managing power-up sequences automatically. Consider the thermal dissipation capabilities when designing heat management solutions for enclosed spaces. The automotive grade rating makes it suitable for harsh operating conditions where standard industrial components may fail prematurely.

Isolators - Gate Drivers Part Context

This part belongs to the Si8274 series of isolated gate drivers designed for robust performance in demanding environments. It utilizes silicon dioxide technology to provide electrical isolation without the limitations of traditional optocouplers. The series offers various configurations to suit different channel counts and packaging needs while maintaining consistent electrical characteristics across the family.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include other parts from the Si8274 family such as the SI8274GB4D-AS1R or SI8274DB4D-AS1R, provided they match the required packaging and output voltage specifications. Verify pin compatibility and electrical parameters before swapping to ensure circuit integrity.