NCP1079AAP100G

AC DC Converters, Offline Switchers Overview

The NCP1079AAP100G is an enhanced offline switcher from onsemi, designed for flyback AC/DC converter topologies. It integrates a high-voltage current-mode controller and a power MOSFET in a single package. Key electrical parameters include a switching frequency of 100 kHz, a maximum duty cycle of 72%, and a startup voltage range of 6.5 V to 20 V. The device supports a maximum output power of 41 W with an output current capability of 1.05 A. It operates within a temperature range of -40°C to +125°C and utilizes a PDIP-7 through-hole package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage current-mode controller with a power MOSFET for compact design
• Provides comprehensive protection against overcurrent, overtemperature, and overvoltage conditions
• Features fixed switching frequency operation to simplify electromagnetic interference filtering

AC DC Converters, Offline Switchers Applications

• Offline AC/DC converters
• Flyback topology power supplies
• Enhanced offline switcher circuits

AC DC Converters, Offline Switchers Procurement Notes

Verify the component status as End-of-Life (EOL) before procurement, as the manufacturer indicates it will be discontinued. Confirm that the PDIP-7 through-hole package meets your board layout requirements. Ensure compatibility with the specified operating temperature range and input voltage specifications for your target application environment.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring an integrated solution for low-to-medium power offline conversion. The fixed 100 kHz frequency aids in standardizing filter designs. Consider the PDIP-7 package for prototyping or through-hole manufacturing needs. Verify that the 41 W power limit aligns with system requirements and that the internal MOSFET voltage ratings suit the primary side stress conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP1079A series of enhanced offline switchers by onsemi. These devices are designed to replace discrete controller and MOSFET combinations, reducing component count and assembly complexity. The series targets cost-sensitive, high-volume consumer and industrial power supply applications where reliability and thermal performance are critical.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1079BBP100G is listed as a potential replacement option.