ON Semiconductor NCP1612A3DR2G - Power Factor Correction Controller

The NCP1612A3DR2G is a sophisticated power factor correction (PFC) controller designed by ON Semiconductor, engineered to deliver an efficient power solution for a wide range of applications. This controller is specifically tailored to drive PFC boost stages based on an innovative Current Controlled Frequency Fold-back (CCFF) method. The NCP1612A3DR2G regulates the power factor by shaping the input current waveform to align with the mains voltage, resulting in reduced total harmonic distortion (THD) and enhanced power quality.

ON Semiconductor's NCP1612A3DR2G operates in Continuous Conduction Mode (CCM), which makes it ideal for systems that require a high power factor and a low electromagnetic interference (EMI) signature. Its built-in high-voltage startup circuit ensures a rapid and lossless activation, while the adjustable overvoltage protection safeguards the system against transient voltage spikes.

The device integrates numerous features that contribute to system reliability and performance. It includes brown-out protection, which prevents operation under inadequate line conditions, and a bypass pin for seamless transition to standby mode, ensuring energy efficiency in light-load situations. The NCP1612A3DR2G also supports frequency modulation to minimize EMI and provides a robust suite of protections, including cycle-by-cycle current limiting, open-loop protection, and thermal shutdown.

Available in a compact SOIC-8 package, the NCP1612A3DR2G is a versatile solution for AC-DC converters in consumer electronics, servers, and industrial systems. Its advanced control features, combined with ON Semiconductor's commitment to quality, make the NCP1612A3DR2G a reliable and efficient choice for designers seeking to optimize power factor and enhance system performance.

Key Features:

• Current Controlled Frequency Fold-back (CCFF) for improved THD and efficiency
• Continuous Conduction Mode (CCM) operation
• High-voltage startup circuit
• Adjustable overvoltage protection
• Brown-out protection and bypass pin for standby mode
• Frequency modulation for reduced EMI
• Comprehensive set of protections (current limiting, open-loop, thermal shutdown)
• SOIC-8 package for a compact footprint