NCP1011AP065

PMIC - AC DC Converters, Offline Switchers

NCP1011AP065, a synchronous rectification AC/DC converter control IC, belongs to a wide range of AC/DC converters, offline switchers and power supply control ICs manufactured by ON Semiconductor. This device is designed to provide a reliable and efficient cost effective solution to suit a variety of minor power applications in both indoor and outdoor settings.

The NCP1011AP065 includes a 25V peak voltage transient voltage suppressor (TVS) as well as inrush current, undervoltage and overvoltage protection. This device also provides frequency dithering, noise reduction and temperature monitoring. The NCP1011AP065 is well-suited for applications such as cell phone chargers, battery backups, LED lighting and lighting control.

In terms of its working principle, the NCP1011AP065 device uses a current mode control architecture to enhance system performance. The current mode control architecture is based on a closed loop control system wherein the voltage feedback signal is connected to a comparator. The current sensing is used to activate an internal power FET and an asynchronous rectifier. The output of the comparator is used to control the on and off switching cycles of the power FET and the asynchronous rectifier. With a wide power range from 100 mV to over 10 V, the device is capable of driving low voltage loads, such as those commonly found in portable applications.

In addition, the NCP1011AP065 includes (but is not limited to) a number of features such as soft start, overvoltage protection, and undervoltage lockout. Soft start allows the device to slowly increase the power switching frequency to reach the set-point level, reducing potential inrush surges. It also prevents voltage spikes and reduces the overall current draw of the system. The device has built-in over-voltage protection (OVP) to protect from excessive voltages. If a particular set-point is exceeded, the device will latch off for safety.

The NCP1011AP065 includes a low quiescent current sleep mode to reduce the overall current draw of the system when it is not operating. In operating mode, if the voltage output falls below its set-point, the undervoltage protection will immediately shut off the switching FETs, reducing power consumption to near-zero. In addition, the device has a low-power enable mode of operation, where it can remain on but switch off if the voltage output drops below the set-point.

The NCP1011AP065 can also be used in a variety of other power applications, including AC-DC buck and boost converters, resonant converters, and DC-DC buck converters. It is also suitable for use with battery packs and other low-voltage devices. With its high performance and cost-effective solution, this device offers a great solution to any AC/DC switching application.

In conclusion, the NCP1011AP065 is a robust and cost-effective device for providing reliable power delivery to a wide variety of applications. It features a current mode control architecture, soft start, overvoltage and undervoltage protection, and a sleep mode to reduce the overall current draw. It is suitable for use in both indoor and outdoor applications and is ideal for use with battery packs and other low-voltage devices.