SI8235AB-AMR

Isolators - Gate Drivers Overview

The SI8235AB-AMR is a dual-channel, current-isolated gate driver manufactured by Skyworks Solutions Inc. It features capacitive coupling for galvanic isolation with a rated insulation voltage of 2.5 kVrms. The device operates within a temperature range of -40°C to +125°C and supports a maximum power dissipation of 1.2 W. Key electrical parameters include a maximum propagation delay of 45 ns, with rise and fall times of 12 ns each. It is housed in a 14-QFN (5x5) package and holds AEC-Q100 qualification.

Isolators - Gate Drivers Feature Summary

• Provides high-speed digital isolation via capacitive coupling technology
• Delivers dual-channel output capability for independent gate control
• Ensures safety compliance through CQC, CSA, UL, and VDE certifications

Isolators - Gate Drivers Applications

• High-voltage switching applications requiring galvanic isolation
• Industrial motor drive systems
• Power supply gate driving circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary between tape-and-reel and tray configurations depending on the manufacturer's current production status. Confirm that the component meets the required automotive qualification standards if intended for AEC-Q100 compliant designs. Cross-reference official datasheets to ensure compatibility with system voltage levels and isolation requirements before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring robust galvanic isolation between low-voltage control logic and high-voltage power stages. The dual-channel architecture allows for simultaneous control of multiple switches, such as high-side and low-side MOSFETs or IGBTs. Ensure the system design accommodates the specified operating temperature range and power dissipation limits to maintain reliable performance under thermal stress conditions.

Isolators - Gate Drivers Part Context

This part belongs to the SI823x series of isolated gate drivers from Skyworks Solutions. It is designed to replace traditional transformer-based isolators in modern power electronics. The series emphasizes compact form factors and high reliability, making it suitable for space-constrained industrial and automotive environments where signal integrity and isolation breakdown voltage are critical design constraints.

Isolators - Gate Drivers Replacement Considerations

The SI8235AB-AM1R is listed as an obsolete substitute option recommended by the manufacturer. Verify functional equivalence regarding pinout, isolation voltage, and drive current capabilities before implementing any cross-replacement in existing designs.