NCP1252APG

AC DC Converters, Offline Switchers Overview

The NCP1252APG is a current mode PWM controller designed for forward and flyback applications. It supports a switching frequency up to 500 kHz with a maximum duty cycle of 50%. The device operates within a Vcc range of 9 V to 28 V and features a +500 mA/-800 mA source/sink drive capability. It includes internal 160 ns leading edge blanking, adjustable soft-start, and brown-out detection. The component is housed in an SOIC-8 package and functions without auxiliary Vcc for output overload detection.

AC DC Converters, Offline Switchers Feature Summary

• Peak current mode control for robust power supply design
• Primary side overcurrent protection with latching and fixed delay
• Frequency jitter to improve EMI characteristics
• Skip cycle operation for light load efficiency

AC DC Converters, Offline Switchers Applications

• ATX PC power supplies
• AC-DC adapters
• Game console adapters
• Forward converter applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'APG' against the manufacturer's latest datasheet to confirm the exact duty cycle limit and pinout configuration. Ensure the ordering information matches the required tape and reel specifications for automated assembly processes.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive projects requiring high reliability in AC-DC conversion. The integrated driver capability eliminates the need for external MOSFET drivers. Verify that the required maximum duty cycle aligns with the A-series specification limits during circuit design.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP1252 series of current mode PWM controllers. It is engineered for building economical and reliable AC-DC switching power supplies. The series offers various package options and duty cycle variations to suit different topology requirements.

AC DC Converters, Offline Switchers Replacement Considerations

Check NCP1252ADR2G or NCP1252BDR2G for alternative duty cycle specifications. Confirm pin compatibility and electrical parameter alignment before substitution.

AC DC Converters, Offline Switchers FAQ

How does the NCP1252APG detect output overload?

It utilizes an internal fixed timer to detect output overload conditions without relying on an auxiliary Vcc winding.

What is the maximum duty cycle for the APG variant?

The NCP1252APG supports a maximum duty cycle of 50%.