SI8233BB-D-IS

Isolators - Gate Drivers Overview

The SI8233BB-D-IS is a dual-channel isolated gate driver from the Si823x series, manufactured by Skyworks Solutions Inc. It features two independent drivers with up to 5 kVRMS input-to-output isolation and a peak driver-to-driver differential voltage of 1500 VDC. The device supports high-side and low-side configurations with a maximum propagation delay of 45 ns. It operates within a supply voltage range of 4.5 V to 24 V and provides an output current of 4 A. The component 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 galvanic isolation between control circuitry and power switches using silicon-based technology.
• Integrates high-side and low-side driver capabilities within a single compact package.
• Features high electromagnetic immunity to ensure reliable operation in noisy environments.
• Includes undervoltage lockout (UVLO) functionality to protect against insufficient supply voltages.

Isolators - Gate Drivers Applications

• Motor drive and control systems
• Industrial power management circuits
• Inverter topologies requiring isolated gate driving

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'D-IS' corresponds to the tube packaging format when ordering. Confirm that the 2.5 kVRMS isolation rating meets your system's safety requirements, as other variants may offer higher ratings. Ensure the SOIC-Wide-16 footprint matches your PCB layout constraints. Check for AEC-Q100 qualification if deploying in automotive contexts. Validate operating temperature ranges against your environmental specifications.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation is required for synchronous rectification or half-bridge applications. Consider the 45 ns propagation delay for switching frequency limitations. Evaluate the 4 A peak output current against the gate charge requirements of the target MOSFETs or IGBTs. Compare the 5 kVRMS isolation barrier against regulatory standards such as UL1577. Assess the need for TTL-compatible inputs if interfacing with standard logic families.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x family of isolated gate drivers, which utilizes Silicon Labs' proprietary silicon isolation technology. The family offers various isolation ratings and packaging options to suit different power electronics designs. The SI8233 variant specifically targets applications needing two isolated channels with high-speed switching capabilities and robust noise immunity.

Isolators - Gate Drivers Replacement Considerations

Check for direct pin-compatible alternatives within the Si823x series that may offer different isolation voltages or packaging styles. Verify electrical parameters such as propagation delay and output current when substituting with other manufacturers' isolated gate drivers. Ensure the replacement component meets the same AEC-Q100 qualification if used in automotive applications.

Isolators - Gate Drivers FAQ

What is the maximum isolation voltage rating for the SI8233BB-D-IS?

The device provides up to 5 kVRMS input-to-output isolation, compliant with UL1577 standards.

Does the SI8233BB-D-IS support both high-side and low-side driving?

Yes, it integrates two independent drivers configured for high-side and low-side applications.

What is the typical propagation delay of this driver?

The maximum propagation delay is specified as 45 ns.