SI8261BCC-ASR

Isolators - Gate Drivers Overview

The SI8261BCC-ASR is a single-channel, automotive-grade digital isolated gate driver from the Si826x series. It utilizes capacitive coupling technology to provide robust signal isolation with a 3750Vrms rating. The device features a 4A peak output current capability and operates within a supply voltage range of 13.5V to 30V on the secondary side. Key electrical parameters include a typical rise time of 5.5ns and fall time of 8.5ns. It is designed as a drop-in replacement for traditional optocoupler drivers, offering superior common-mode transient immunity of 35kV/µs. The component is AEC-Q100 qualified and housed in an 8-SOIC surface-mount package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology provides high reliability and long-term performance compared to optical alternatives
• Automotive qualification ensures suitability for demanding industrial and vehicle applications
• High common-mode transient immunity supports stable operation in electrically noisy environments

Isolators - Gate Drivers Applications

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

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix ASR indicates tape and reel packaging when sourcing. Confirm that the part meets AEC-Q100 automotive standards if required for your application. Check for any product change notifications or end-of-life notices from Skyworks Solutions. Ensure compatibility with existing PCB footprints intended for opto-driver replacements. Validate insulation ratings against system safety requirements.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring a direct replacement for legacy optocouplers with improved speed and reliability. Consider the 4A drive strength for medium-power MOSFET or IGBT switching. Evaluate the 3750Vrms isolation barrier for high-voltage separation needs. Compare propagation delay characteristics against system timing constraints. Assess thermal performance within the specified operating temperature range.

Isolators - Gate Drivers Part Context

The SI8261BCC-ASR belongs to the Si826x family of digital isolators. This series replaces traditional opto-drivers with CMOS-based solutions. The family offers various configurations including half-bridge and single-channel options. These devices are engineered for high-volume manufacturing and consistent performance across industrial sectors.

Isolators - Gate Drivers Replacement Considerations

This part serves as a direct pin-compatible replacement for many standard optocoupler gate drivers. Verify footprint compatibility before substitution. Note that input logic levels may differ from older optical designs. Ensure adequate decoupling near the VDD pins to maintain signal integrity.