ON Semiconductor NCP1010AP065G Product Overview

The NCP1010AP065G is a highly integrated power-switching regulator from ON Semiconductor that combines a fixed-frequency current-mode controller with a 650 V MOSFET. Designed for low-power AC/DC applications, this self-supplied switcher integrates a plethora of features to streamline the design of power supplies, particularly for space-constrained and cost-sensitive applications.

Key Features

• High-Voltage Integration: The NCP1010AP065G integrates a 650 V MOSFET, allowing it to handle high input voltage operations with ease, which is particularly beneficial for fluctuating mains supplies.
• Fixed-Frequency Operation: This device operates at a fixed frequency of 65 kHz, which simplifies the EMI filter design due to predictable frequency emissions.
• Current-Mode Control: The current-mode control provides fast transient response and cycle-by-cycle current limiting, enhancing the performance and reliability of the power supply.
• Self-Supplied: No auxiliary winding is required for the operation of this IC, which simplifies the design of the power supply and reduces the overall bill of materials.
• Skip-Cycle Operation: At light loads, the NCP1010AP065G enters a skip-cycle mode, significantly improving the efficiency by reducing switching losses and standby power consumption.
• Built-in Protections: The device features several protective functions, such as overvoltage, overload, and short-circuit protection, ensuring safe operation under abnormal conditions.
• Frequency Jittering: Frequency jittering helps to spread the EMI and reduce the EMI filtering requirements.

Applications

The NCP1010AP065G is suitable for a wide range of low-power applications where efficient energy conversion is required. Typical applications include:

• AC/DC adapters for cell phones, PDAs, and MP3 players
• Standby and auxiliary power supplies
• Under 10 W power supplies for household appliances
• LED lighting drivers

With its combination of features, the NCP1010AP065G provides designers with a compact, efficient, and cost-effective solution for power supply design. Its integrated MOSFET and comprehensive protection features make it a reliable choice for a variety of low-power applications.