SIC1181KQ

Isolators - Gate Drivers Overview

The SIC1181KQ is a single-channel, 8A gate driver from the SCALE-iDriver™ series by Power Integrations. It utilizes magnetic coupling technology to provide reinforced galvanic isolation with a voltage rating of 5000Vrms. The device features a common-mode transient immunity of 35kV/µs and operates within a temperature range of -40°C to 125°C. Output drive capabilities include peak currents of 8A, with high-side and low-side currents of 7.8A and 7.3A respectively. Propagation delays are specified at maximum 305ns (tpLH) and 325ns (tpHL), while typical rise and fall times are 475ns and 447ns. It supports an output supply voltage of 18V to 28V and is housed in an eSOP-R16B package.

Isolators - Gate Drivers Feature Summary

• Provides reinforced galvanic isolation via magnetic coupling technology for enhanced noise immunity.
• Optimized specifically for driving Silicon Carbide (SiC) MOSFETs with high-speed switching characteristics.
• Features advanced active clamp functionality to protect against overvoltage conditions.
• Complies with AEC-Q100 standards for automotive reliability applications.

Isolators - Gate Drivers Applications

• Silicon Carbide (SiC) MOSFET gate driving in high-efficiency power converters
• Automotive power electronics systems requiring AEC-Q100 compliance
• Industrial motor drives utilizing SiC devices
• High-frequency DC-DC conversion topologies

Isolators - Gate Drivers Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and tape-and-reel specifications. Confirm that the selected variant meets all required automotive qualification standards if used in AEC-Q100 applications. Cross-reference the datasheet revision date to ensure compatibility with current design requirements. Ensure input signals are compatible with the driver's logic thresholds before integration into the system design.

Isolators - Gate Drivers Selection Notes

Select this component when designing circuits with SiC MOSFETs requiring high dv/dt immunity and robust isolation. The 8A peak drive current supports fast switching transitions necessary for high-frequency operation. Consider the 5000Vrms isolation rating for safety-critical applications. Evaluate the thermal performance within the -40°C to 125°C operating range to ensure long-term reliability in demanding environments.

Isolators - Gate Drivers Part Context

The SIC1181KQ belongs to the SCALE-iDriver™ family of isolated gate drivers from Power Integrations. This series is designed to replace traditional optocoupler-based solutions, offering superior performance in terms of speed, reliability, and size. The part is engineered to handle the stringent demands of wide-bandgap semiconductors, providing a compact and efficient solution for modern power electronic designs.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources or authorized distributors for qualified alternatives that match the electrical specifications and pinout configuration.