SI8261BBC-AS

Isolators - Gate Drivers Overview

The SI8261BBC-AS is a single-channel, inverting optically isolated gate driver from the Si826x series by Skyworks Solutions. It serves as a digital CMOS drop-in replacement for traditional optocoupler drivers, offering superior common-mode transient immunity and reliability. The device supports a supply voltage range of 5V to 30V and delivers up to 4A peak output current. It features fast switching with rise and fall times of 5.5ns and 8.5ns respectively. Certified under AEC-Q100, it operates within a temperature range of -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Pin-compatible drop-in upgrade for popular high-speed opto-coupled gate drivers
• Low power diode emulator simplifies design-in process
• Superior common-mode transient immunity compared to standard opto-drivers

Isolators - Gate Drivers Applications

• Industrial drives and motor control
• Solar power inverters
• Switched-mode power supplies (SMPS)
• Uninterruptible power supplies (UPS)
• High-voltage medical equipment

Isolators - Gate Drivers Procurement Notes

Verify that the specific suffix 'AS' corresponds to the required RoHS compliance and lead-free status as defined in the official Skyworks documentation. Confirm package type compatibility, as the Si826x family includes both SDIP and SOIC variants. Ensure the selected part meets the specific automotive qualification requirements if intended for AEC-Q100 applications. Cross-reference the pinout with existing designs to confirm direct replacement feasibility without PCB modifications.

Isolators - Gate Drivers Selection Notes

Select this component when replacing legacy optocouplers in high-reliability applications requiring long-term fail-safe operation. The choice is driven by the need for robust performance in high-power motor control and industrial environments. Consider the 4A output capability and fast switching speeds for efficient power stage driving. Verify that the inverting configuration aligns with the system logic requirements. The wide operating temperature range supports harsh environmental conditions.

Isolators - Gate Drivers Part Context

The SI8261BBC-AS belongs to the Si826x family of digital isolators designed to replace analog optocouplers. This series provides a modern solution for isolation in power electronics, addressing limitations such as aging and lower common-mode rejection found in traditional devices. The BBC variant specifically denotes the package and thermal characteristics suitable for surface mount assembly in compact industrial and automotive modules.

Isolators - Gate Drivers Replacement Considerations

• SI8261BCC-AS

Isolators - Gate Drivers FAQ

Is the SI8261BBC-AS an inverting or non-inverting driver?

The SI8261BBC-AS is an inverting gate driver.

What is the maximum output current capability of this device?

The device provides a peak output current of up to 4A.