NCP1219BD65R2G

AC DC Converters, Offline Switchers Overview

The NCP1219BD65R2G is a current mode PWM controller designed for flyback converter topologies. It operates with a fixed switching frequency of 65 kHz and supports a maximum duty cycle of 85%. The device features an output voltage range from -300 mV to 20 V and provides an output current capability of 500 mA sourcing and 800 mA sinking. It functions within a temperature range of -40 °C to +150 °C and is housed in a 7-pin SOIC package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage startup circuitry to eliminate external start-up resistors, reducing component count and improving reliability.
• Includes built-in cycle-by-cycle current limiting and thermal shutdown for robust protection against overload conditions.
• Features programmable soft-start and auto-restart mechanisms to manage inrush current and recover from fault states.

AC DC Converters, Offline Switchers Applications

• Offline AC-DC power supplies
• LED lighting drivers
• Battery chargers

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix BD65R2G to confirm the 65 kHz frequency variant and tape-and-reel packaging format. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the source is authorized to avoid counterfeit components, as this part is subject to market counterfeiting risks.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for applications requiring a compact flyback solution with integrated high-voltage startup. It is suitable for designs needing precise current mode control with minimal external components. Consider the SOIC-7 package constraints for PCB layout and thermal management requirements relative to the expected power dissipation levels.

AC DC Converters, Offline Switchers Part Context

This component belongs to the NCP1219 series of current mode PWM controllers. It is manufactured by onsemi and falls under the category of Power Management ICs (PMIC). The device is specifically engineered for offline switch-mode power supply applications where efficiency and component count are critical design factors.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1219AD65R2G: Similar functionality but may differ in specific electrical tolerances or package variants; verify datasheet compatibility before substitution.