SI8235AB-D-IM1R

Isolators - Gate Drivers Overview

The SI8235AB-D-IM1R is a dual-channel, galvanically isolated gate driver from the Si823x series by Skyworks Solutions. It features a 2.5 kVrms isolation voltage and operates within a temperature range of -40°C to +125°C. The device supports TTL logic inputs with a maximum propagation delay of 45 ns. It provides peak output currents of 0.5 A and 4.0 A for low-side and high-side driving, respectively. The component is housed in a QFN-14 package and is AEC-Q100 qualified for automotive applications.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between control circuitry and power switches using capacitive coupling technology.
• Features independent high-side and low-side outputs capable of driving power MOSFETs or IGBTs directly.
• Includes under-voltage lockout (UVLO) protection to ensure reliable operation during power-up and power-down sequences.

Isolators - Gate Drivers Applications

• Industrial motor drives
• Solar micro-inverters
• Automotive power electronics

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IM1R confirms the reel packaging format required for surface-mount assembly processes. Confirm that the 2.5 kVrms isolation rating meets the safety requirements of the target application environment. Ensure compatibility with the 5 V UVLO threshold for the intended supply voltage range. Check current availability status as distribution channels may vary.

Isolators - Gate Drivers Selection Notes

Select this component when a compact dual-channel solution with moderate isolation voltage is required. The QFN-14 package offers a small footprint suitable for space-constrained designs. Consider the 45 ns propagation delay for switching frequency limitations. Verify that the 0.5 A/4.0 A drive strength matches the gate charge requirements of the connected power devices.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers, which utilizes Skyworks' proprietary capacitive isolation technology. The family includes variants with different isolation voltages and package options. The SI8235AB variant specifically denotes the 2.5 kVrms isolation class with 5 V UVLO, distinguishing it from higher voltage or different logic threshold counterparts.

Isolators - Gate Drivers Replacement Considerations

SI8235BB-D-IS1R

Isolators - Gate Drivers FAQ

What is the isolation technology used in the SI8235AB-D-IM1R?

The device uses capacitive coupling technology to provide galvanic isolation between the input and output sections.

Does the SI8235AB-D-IM1R support automotive applications?

Yes, the component is AEC-Q100 qualified, making it suitable for automotive electronic systems.