NV9581F112

AC DC Converters, Offline Switchers Overview

The NV9581F112 is a GaNSense controller from Navitas Semiconductor, designed for high-frequency quasi-resonant (HFQR) flyback converters with secondary side synchronous rectification. It integrates a 700V breakdown voltage and an internal switch with 210mOhm on-resistance. The device operates within a temperature range of -40°C to +125°C and features a startup voltage of 13.5V. Key protection mechanisms include overload, over-temperature, over-voltage, and short-circuit fault handling. It is housed in a QFN-23 package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates GaNSense technology for high-frequency quasi-resonant operation
• Includes internal high-voltage switch for simplified design
• Supports secondary side synchronous rectification topology
• Provides comprehensive fault protection including over-load and over-temperature

AC DC Converters, Offline Switchers Applications

• Offline flyback power supplies
• Secondary side synchronous rectification circuits
• High-frequency quasi-resonant converter designs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'F112' against official Navitas documentation to confirm pinout and electrical characteristics. Ensure compatibility with your target flyback transformer and control loop requirements. Check current availability status as distribution may vary by region. Confirm RoHS compliance details through the manufacturer's datasheet before finalizing procurement plans.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring integrated high-voltage switching and synchronous rectification control in a compact form factor. The 700V rating suits common offline AC-DC conversion needs. Consider the 210mOhm internal switch resistance for efficiency calculations. Verify that the QFN-23 package fits your PCB layout constraints and thermal management strategy.

AC DC Converters, Offline Switchers Part Context

This part belongs to the GaNSense Control series from Navitas Semiconductor, focusing on specialized power management ICs. It is distinct from the NV6133A half-bridge driver and other variants like the NV9581F1C1-RA which shares similar packaging but may differ in specific integration levels or parameters.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Navitas Semiconductor directly for qualified alternatives or cross-reference options based on specific electrical and pinout requirements.