SI8261ABC-C-ISR

Isolators - Gate Drivers Overview

The SI8261ABC-C-ISR is a single-channel isolated gate driver manufactured by Skyworks Solutions Inc. It utilizes capacitive coupling technology to provide electrical isolation between input and output circuits. The device operates within a supply voltage range of 5 V to 30 V and supports peak output currents up to 4 A. It features a propagation delay of 60 ns (high-to-low) and 50 ns (low-to-high), with rise and fall times of 5.5 ns and 8.5 ns, respectively. The component offers 3750 Vrms isolation voltage and a common-mode transient immunity of 35 kV/µs. It is housed in an 8-SOIC package and is qualified under the AEC-Q100 standard for automotive applications.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology enables high-speed signal transmission with robust electromagnetic interference immunity.
• Provides galvanic isolation suitable for replacing traditional optocouplers in power conversion systems.
• AEC-Q100 qualification ensures reliability and compliance for demanding automotive electronic environments.

Isolators - Gate Drivers Applications

• Isolated gate driving for MOSFETs and IGBTs in motor control inverters
• Power supply designs requiring high common-mode transient immunity
• Automotive electronics systems utilizing isolated switching components

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'C-ISR' corresponds to the SOIC-8 tape-and-reel packaging configuration. Confirm that the AEC-Q100 automotive qualification status remains active for this specific part number variant. Ensure compatibility with the required isolation voltage ratings for the target application circuit design before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with high CMTI is required. The 4 A peak current capability suits medium-power switching applications. Consider the 8-SOIC package constraints for PCB layout. Verify that the 3750 Vrms isolation rating meets the safety standards of the intended system architecture compared to higher-voltage alternatives.

Isolators - Gate Drivers Part Context

This part belongs to the Si826x family of isolated gate drivers from Skyworks Solutions. The series leverages silicon dioxide insulation technology to replace legacy optocoupler solutions. The family provides various channel configurations and isolation levels, with this specific model focusing on single-channel performance in a compact surface-mount footprint.

Isolators - Gate Drivers Replacement Considerations

Direct replacements include other variants within the Si8261 family such as SI8261BCC-C-ISR or SI8261BAD-C-ISR, depending on the required isolation voltage and package type. Verify pinout compatibility and electrical specifications against the original design requirements before substitution.

Isolators - Gate Drivers FAQ

What is the typical common-mode transient immunity (CMTI) of the SI8261ABC-C-ISR?

The device specifies a minimum common-mode transient immunity of 35 kV/µs.

Does the SI8261ABC-C-ISR support automotive applications?

Yes, the component is qualified according to the AEC-Q100 standard for automotive use.