NCP1215DR2G

AC DC Converters, Offline Switchers Overview

The NCP1215DR2G is a low-cost, small-power offline flyback switching power supply controller from onsemi. It employs variable turn-off time control and primary current sensing to achieve low standby energy consumption in AC/DC adapters. The device supports an input voltage range of 85V to 264V AC and operates with a supply voltage between 9V and 18V. Key technical features include natural frequency jitter for EMI reduction, peak current compression to suppress transformer mechanical resonance, and a programmable current sense resistor peak voltage. It utilizes current mode control operation and includes under-voltage lockout functionality.

AC DC Converters, Offline Switchers Feature Summary

• Variable turn-off time control method for optimized light-load performance
• Natural frequency jitter capability to reduce electromagnetic interference
• Peak current compression technology to suppress transformer mechanical resonance
• Primary current sensing technique with programmable current detection resistor peak voltage

AC DC Converters, Offline Switchers Applications

• Low standby energy AC/DC power adapters
• Mobile phone and PDA chargers
• Computer standby power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix DR2G against official datasheets to confirm SOIC-8 packaging and lead-free status. Confirm operational temperature ranges and electrical parameters directly from the manufacturer's documentation. Ensure compatibility with required isolation and feedback circuit designs for the target application.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring cost-effective offline flyback solutions with strict standby power limits. The integrated jitter and peak current compression make it suitable for environments sensitive to EMI. Evaluate thermal requirements as the junction temperature can reach up to 150°C during operation.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP1215 series of offline controllers designed for low-power applications. It shares architectural similarities with other models in the family but is distinguished by its SOIC-8 package configuration. The series focuses on minimizing external component count while maintaining high efficiency in consumer electronics power supplies.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1215ASNT1

AC DC Converters, Offline Switchers FAQ

What control method does the NCP1215DR2G use?

It uses a variable turn-off time control method combined with current mode control operation.

How does the device handle electromagnetic interference?

It incorporates natural frequency jitter functionality to lower electromagnetic interference emissions.