SI8261BCD-C-ISR

Isolators - Gate Drivers Overview

The SI8261BCD-C-ISR is a single-channel digital isolator gate driver from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It serves as a drop-in replacement for traditional optocoupler drivers in high-voltage applications. The device features a 5000Vrms isolation rating and operates within a supply voltage range of 5 V to 30 V. It provides a peak output current of 4 A with rise and fall times of 5.5 ns and 8.5 ns, respectively. Designed for surface mount installation in a 6-pin SDIP package, it supports an operating temperature range from -40°C to +125°C and holds AEC-Q100 qualification.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology replaces optical components for enhanced reliability
• High common-mode transient immunity for robust noise performance
• Digital CMOS interface compatible with standard logic inputs
• Fail-safe operation capability suitable for long-term industrial warranties

Isolators - Gate Drivers Applications

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

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'C-ISR' against the manufacturer's official datasheet to confirm pinout compatibility and packaging specifications. Ensure that the selected variant matches the required isolation voltage and output current ratings for the target application. Cross-reference the AEC-Q100 qualification status if automotive or high-reliability industrial standards are mandatory for the design.

Isolators - Gate Drivers Selection Notes

Select this component when replacing legacy optocouplers in circuits requiring superior common-mode transient immunity and faster switching speeds. The 4 A output current capability makes it suitable for driving medium-power MOSFETs and IGBTs. Consider the SDIP-6 footprint for direct board-level upgrades without redesigning the PCB layout, ensuring the input logic levels align with the system's control signals.

Isolators - Gate Drivers Part Context

This part belongs to the Si826x family of digital isolators, which are engineered to provide a modern alternative to opto-isolated drivers. The family offers improved performance metrics including higher data rates and better thermal stability. These devices are specifically designed to address the longevity and reliability challenges associated with traditional optocouplers in demanding power electronics environments.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers: SI8261BAD-C-ISR, SI8261BCC-C-ISR.