The NCP1337PG from ON Semiconductor is a cutting-edge PWM controller that combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi-Resonant operation).

Key Features

• Quasi-Resonant Operation: The NCP1337PG's quasi-resonant topology ensures reduced EMI noise and lower switching losses, leading to higher efficiency and reliability in your power supply designs.
• Adjustable Overcurrent Protection: This feature allows for precise control over the current limit, protecting the device and other components in the event of an overload or short-circuit condition.
• High-Voltage Startup: The built-in high-voltage startup circuitry provides a fast and efficient way to start up the controller, reducing power losses and improving system performance.
• Auto-Recovery Overvoltage Protection: The NCP1337PG is designed to protect against overvoltage conditions, automatically recovering once the fault condition is removed, which enhances the safety and longevity of the application.
• Frequency Foldback: To improve efficiency at light loads, the controller reduces its switching frequency, minimizing standby power consumption.
• Soft-Skipping: A special mode that avoids acoustic noise by gently reducing the switching frequency under light load conditions.

Applications

The NCP1337PG is suitable for a wide range of applications, including but not limited to:

• AC-DC adapters for notebooks
• Offline battery chargers
• Auxiliary power supplies for white goods
• Standby power supplies for TVs and monitors
• Industrial power supplies

Product Specifications

The NCP1337PG PWM Controller from ON Semiconductor is a robust solution designed for high-performance power conversion with enhanced safety features and energy efficiency.