SI8261BBC-ASR

Isolators - Gate Drivers Overview

The SI8261BBC-ASR is a single-channel, inverting digital isolated gate driver from Skyworks Solutions. It utilizes capacitive coupling technology to provide robust isolation with a rated voltage of 3750Vrms. The device features a peak output current capability of 4A and supports a supply voltage range of 13.5V to 30V. Key timing parameters include a typical rise time of 5.5ns and fall time of 8.5ns. It operates within an extended temperature range of -40°C to +125°C and holds AEC-Q100 automotive qualification.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology for superior common-mode transient immunity compared to optical isolators
• Automotive-grade reliability with AEC-Q100 certification for long-term performance
• Digital CMOS drop-in replacement design for legacy optocoupler drivers

Isolators - Gate Drivers Applications

• High-power motor control systems
• Industrial drives and motor control applications
• Solar power inverters
• Switched-mode power supplies (SMPS)
• Uninterruptible power supplies (UPS)

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ASR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 3750Vrms isolation rating meets the safety standards of the target application. Ensure the inverting logic configuration aligns with the control signal requirements of the power stage being driven.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching and robust noise immunity are critical. The 4A peak drive current is suitable for medium-power MOSFETs and IGBTs. Consider the inverting topology if the system design requires signal inversion between input and output. Verify thermal management needs given the 125°C maximum operating temperature limit.

Isolators - Gate Drivers Part Context

This part belongs to the Si826x family of digital isolators, designed to replace traditional opto-drivers. The family offers various configurations including half-bridge and high-side/low-side drivers. The Si8261 variant specifically provides a single-channel solution optimized for cost-sensitive and space-constrained industrial and automotive designs requiring reliable galvanic isolation.

Isolators - Gate Drivers FAQ

What is the isolation voltage rating of the SI8261BBC-ASR?

The device provides a reinforced isolation voltage rating of 3750Vrms.

Does the SI8261BBC-ASR have an inverting or non-inverting configuration?

The SI8261BBC-ASR is configured as an inverting gate driver.