NCP1654BD65R2G

The NCP1654BD65R2G is a high-performance power factor controller (PFC) designed for compact and robust continuous conduction mode (CCM) pre-converters. Manufactured by ON Semiconductor, this controller offers a range of advanced features that make it suitable for a wide variety of applications.

Key features of the NCP1654BD65R2G include:

1. Power Factor Correction (PFC): The device is specifically designed for power factor correction, ensuring that the input current waveform follows the input voltage waveform closely, thus improving the power factor and reducing harmonic distortions.
2. Continuous Conduction Mode (CCM): The NCP1654BD65R2G operates in CCM, which allows for efficient power conversion and reduced component stress.
3. Fixed Frequency PWM Control: The controller uses fixed frequency pulse width modulation (PWM) to control the power switch conduction time, depending on the instantaneous coil current.
4. SO8 Package: The device is packaged in a compact SO8 format, minimizing the number of external components and simplifying the PFC implementation.
5. Low Operating Consumption: The NCP1654BD65R2G features low operating consumption, making it energy-efficient and suitable for applications requiring low power loss.
6. Accurate Oscillator: The controller integrates a precise, fully integrated 65/133/200 kHz oscillator for stable and reliable operation.
7. Protection Features: The NCP1654BD65R2G includes various protection features such as undervoltage lockout with hysteresis, soft-start for smooth startup operation, overcurrent limitation, surge current detection, overvoltage protection, and open-loop detection or shutdown.
8. Pin-to-Pin Compatibility: The device is pin-to-pin compatible with industry standards, allowing for easy integration into existing designs.

Applications for the NCP1654BD65R2G include flat-panel TVs, PC desktops, AC adapters, white goods, and other offline switched-mode power supplies (SMPS). Its combination of high performance, compact packaging, and advanced protection features makes it an ideal choice for these and other demanding applications.