SI8274BB1-AS1

Isolators - Gate Drivers Overview

The SI8274BB1-AS1 is a single-channel, galvanically isolated gate driver from the Si827x series by Skyworks Solutions. It features high common-mode transient immunity and operates with an isolation voltage of 2.5 kVrms. The device supports PWM input signals and includes an undervoltage lockout (UVLO) threshold set at 8 V. It is designed for automotive applications, certified to AEC-Q100 standards, and housed in a 16-SOIC package. Key electrical parameters include a maximum propagation delay of 105 ns, rise time of 16 ns, and fall time of 18 ns. The input voltage range spans 2.5 V to 5.5 V, while the output provides 4 mA drive current.

Isolators - Gate Drivers Feature Summary

• Automotive-grade reliability with AEC-Q100 certification
• High common-mode transient immunity for noise resilience
• Integrated undervoltage lockout for stable operation
• Low latency and skew characteristics

Isolators - Gate Drivers Applications

• Automotive power electronics control
• Motor drive systems
• Inverter gate driving
• Isolated DC-DC converter control

Isolators - Gate Drivers Procurement Notes

Verify that the specific suffix AS1 corresponds to the required automotive qualification and UVLO threshold configuration. Confirm package integrity upon receipt due to moisture sensitivity classification. Ensure ESD protection protocols are followed during handling and assembly to maintain component reliability and performance specifications.

Isolators - Gate Drivers Selection Notes

Select this part when automotive certification and high CMTI are mandatory requirements. The 8 V UVLO setting distinguishes it from other variants in the family. Consider the 16-SOIC footprint for PCB layout compatibility. Evaluate thermal dissipation capabilities against system power constraints given the 1.2 W power dissipation rating.

Isolators - Gate Drivers Part Context

This component belongs to the Si8274 family of digital isolator gate drivers. It utilizes capacitive coupling technology rather than optical methods. The series offers high-speed switching capabilities suitable for modern power semiconductor devices like IGBTs and MOSFETs in demanding environments.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes within the same family include SI8274AB1-IS1 and SI8274BB4D-IS1. Verify that alternative parts match the specific UVLO voltage level and automotive grade requirements before substitution.