NCP1055P100G

AC DC Converters, Offline Switchers Overview

The NCP1055P100G is a high-voltage monolithic switcher from onsemi, integrating a 700V MOSFET and a current-mode PWM controller in a single package. Designed for flyback topologies, it operates at a switching frequency of 100 kHz with a maximum duty cycle of 77%. The device supports an output voltage of 18 V and delivers up to 2 A of output current. It functions within a temperature range of -40°C to +125°C and utilizes a PDIP-8 through-hole package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with a current-mode PWM controller for compact design
• Features dynamic self-supply capability eliminating the need for auxiliary windings
• Includes comprehensive protection mechanisms such as soft-start and cycle-by-cycle current limiting

AC DC Converters, Offline Switchers Applications

• Offline AC/DC converters
• Flyback power supplies
• Low standby power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized channels due to potential counterfeit risks. Confirm RoHS compliance status via official datasheets. Check for obsolescence notices or lifecycle changes before finalizing designs. Ensure packaging specifications match assembly requirements.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring integrated high-voltage switching without auxiliary winding complexity. Consider the 100 kHz frequency for balancing size and efficiency. Evaluate thermal performance within the specified operating temperature range. Verify compatibility with flyback transformer designs for optimal system integration.

AC DC Converters, Offline Switchers Part Context

Part of the NCP105x series of high-voltage switchers designed for cost-effective offline power conversion solutions. These devices target medium-power applications where space and component count are critical constraints. The series offers robust protection features suitable for consumer and industrial electronics.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1053P100G

AC DC Converters, Offline Switchers FAQ

Does the NCP1055P100G require an auxiliary winding?

No, it features dynamic self-supply that eliminates the need for an auxiliary winding.

What is the maximum breakdown voltage of the integrated MOSFET?

The integrated MOSFET has a breakdown voltage of 700V.