NCP1072P065G

AC DC Converters, Offline Switchers Overview

The NCP1072P065G is a monolithic high-voltage switcher designed for low-power offline AC/DC converters. It integrates a fixed-frequency current mode controller with a 700 V MOSFET in a PDIP-7 package. The device supports flyback topology with a switching frequency of 65 kHz and a maximum duty cycle of 73%. It delivers up to 19 W output power with an operating supply current of 0.25 A. The component operates within a temperature range of -40 °C to +150 °C and provides isolated single-output conversion.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V MOSFET with a fixed-frequency current mode controller for compact design
• Features Dynamic Self-Supply (DSS) technology to eliminate the need for auxiliary windings
• Includes automatic frequency foldback and skip-cycle modes for enhanced light-load efficiency
• Provides comprehensive protection including short-circuit detection, overvoltage protection with auto-recovery, and overload timer

AC DC Converters, Offline Switchers Applications

• Low-power offline AC/DC power supplies
• Adapters and chargers for consumer electronics
• Standby power supplies requiring low no-load consumption
• Flyback converter designs for isolated DC outputs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix P065G confirms the 65 kHz fixed frequency and 700 V rating during sourcing. Confirm the PDIP-7 through-hole package availability matches assembly requirements. Check for end-of-life status or discontinuance notifications from onsemi as this series may have limited production support. Ensure RoHS compliance documentation is available for regulatory adherence.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring high integration without auxiliary winding complexity. The fixed 65 kHz frequency simplifies EMI filter design compared to jittering variants. Consider the 700 V breakdown voltage for standard universal input ranges. Evaluate thermal performance given the 150 °C maximum junction temperature capability in confined spaces.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP107x family of monolithic switchers from onsemi. It shares architectural similarities with the NCP1071 and NCP1075 but differs in specific frequency settings and voltage ratings. The family targets cost-sensitive, high-volume consumer applications where board space and component count are critical constraints.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers for NCP1072P065G were not found in the provided source material. Verify pinout compatibility if considering alternative manufacturers' equivalents.