The NCP1252EDR2G is a versatile and efficient PWM controller designed by ON Semiconductor, engineered to meet the stringent requirements of high-performance power conversion applications. This advanced controller is part of ON Semiconductor's extensive portfolio of energy-efficient power management devices, and it stands out for its ability to drive robust and compact switch mode power supplies (SMPS).

Key Features

• Adjustable Switching Frequency: The NCP1252EDR2G allows for a flexible switching frequency that ranges from 65 kHz to 170 kHz, enabling designers to optimize their power supply for efficiency or size.
• Auto-Recovery Overcurrent Protection: This feature ensures that the device automatically recovers from overcurrent conditions, improving reliability and longevity of the power supply.
• Brown-Out Protection: The controller includes brown-out protection, which guards the system against under-voltage conditions, thus ensuring stable operation under varying input voltages.
• Frequency Foldback: To enhance efficiency at light loads, the NCP1252EDR2G incorporates frequency foldback, which reduces switching losses when the load decreases.
• High-Voltage Startup: The high-voltage startup circuitry enables the controller to start up directly from the high-voltage rail, eliminating the need for additional components and reducing system complexity.
• Short-Circuit Protection: The device features robust short-circuit protection that safeguards the power supply and the load in the event of a fault condition.

Applications

The NCP1252EDR2G is ideal for use in a variety of applications where efficient power conversion is crucial. These include but are not limited to:

• AC-DC adapters for laptops and personal electronics
• Offline battery chargers
• Standby and auxiliary power supplies
• LED lighting drivers
• Telecom and networking power supplies

Package and Availability

The ON Semiconductor NCP1252EDR2G is offered in a compact SOIC-8 package, providing a space-saving solution for modern electronic devices. It is available for purchase through various distributors, and detailed technical documentation can be found on the ON Semiconductor website to assist designers in integrating this controller into their power supply designs.