SI82391CD-IS

Isolators - Gate Drivers Overview

The SI82391CD-IS is a dual-channel, galvanically isolated gate driver from the Si8239x series by Skyworks Solutions. It features a 5 kV isolation rating and operates with a 12 V output voltage. The device supports a supply input range of 2.5 V to 5.5 V and delivers a peak output current of 4 A. Key electrical parameters include a maximum propagation delay of 40 ns, rise and fall times of 12 ns, and a quiescent supply current of 7.2 mA. It is housed in a 16-pin SOIC-Wide package and is qualified under AEC-Q100 standards for automotive applications.

Isolators - Gate Drivers Feature Summary

• Provides high electromagnetic immunity suitable for industrial environments
• Integrates undervoltage lockout (UVLO) for reliable operation
• Offers non-inverting logic configuration for direct signal control

Isolators - Gate Drivers Applications

• Industrial motor drives
• Automotive power electronics
• High-voltage switching circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IS' confirms the industrial temperature grade and RoHS compliance status. Confirm the package variant matches the required SOIC-Wide-16 footprint. Ensure the AEC-Q100 qualification aligns with target automotive reliability standards. Check datasheet revisions for any updates to thermal or electrical limits before finalizing procurement specifications.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation with 5 kV capability is required. The 4 A output drive strength suits medium-power MOSFETs and IGBTs. Consider the 12 ns switching speed for high-frequency applications. Verify that the 16-pin SOIC-Wide package fits the PCB layout constraints. Ensure the 2.5 V to 5.5 V input range matches the control logic levels.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x family of capacitive isolation gate drivers. It shares core architecture with models like SI82394CD-IS and SI82396CD-IS but differs in internal configuration. The SI82391CD-IS specifically provides two independent channels with identical non-inverting paths. It replaces older silicon dioxide isolation technologies with higher durability.

Isolators - Gate Drivers Replacement Considerations

SI82394CD-IS and SI82396CD-IS are related parts within the same series. Verify pin compatibility and internal topology differences before substitution. Ensure the replacement maintains the required 5 kV isolation rating and 4 A drive current.