Power Factor Correction – PFC NCP1654 – 133KHZ

NCP1654BD133R2G – 133kHz PFC Controller – onsemi Power Management IC

The NCP1654BD133R2G from onsemi is a high-performance Power Factor Correction (PFC) controller designed for efficient AC/DC power conversion. Optimized for continuous conduction mode (CCM) operation, this IC minimizes harmonic distortion while maximizing power efficiency in modern electronic systems. PCX ensures authentic onsemi components with same-day shipping and dedicated technical support.

Key Features

• Switching Frequency: 120kHz to 146kHz (133kHz typical)
• Ultra-Low Startup Current: 75 µA
• Wide Operating Voltage: 9V to 20V
• Extended Temperature Range: -40°C to 125°C
• Compact Package: 8-SOIC surface-mount design (3.90mm width)
• Active Status: Current production part

Technical Specifications

This CCM-mode PFC controller features precise frequency control within ±10% tolerance for stable performance. The 8-SOIC package (Supplier Device Package: 8-SOIC) provides robust thermal management for industrial environments. Critical specifications include optimized transient response and built-in protection against over-voltage/over-current conditions, ensuring system reliability. A detailed datasheet is available for download on our product page.

Typical Applications

• Server and telecom power supplies
• Industrial AC/DC converters
• LED lighting drivers
• Consumer electronics adapters
• Energy-efficient UPS systems

About onsemi

onsemi (formerly ON Semiconductor) is a global leader in power management technologies with over 25 years of innovation in energy-efficient solutions. Their semiconductor components are renowned for industrial-grade reliability, meeting stringent automotive and industrial certification standards worldwide.

The company’s vertically integrated manufacturing ensures consistent quality control from wafer production to final testing. onsemi holds ISO/TS 16949 and ISO 14001 certifications, guaranteeing components that exceed industry benchmarks for performance and environmental compliance.

About Power Factor Correction (PFC) ICs

PFC controllers are critical for aligning current and voltage phases in AC systems, reducing reactive power waste and harmonics. By improving power factor to near-unity levels, these ICs help systems comply with international energy regulations like IEC 61000-3-2 while decreasing operational costs.

Modern PFC ICs like the NCP1654 series enable smaller, more efficient power supplies by minimizing heat dissipation and component stress. They’re essential in any application requiring >75W AC input, from industrial motors to computing infrastructure, where energy efficiency directly impacts operational expenses.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for automated assembly. Specify packaging preference during checkout.

Frequently Asked Questions

Question: Does this IC require external MOSFETs?
Answer: Yes – it drives external MOSFETs and diodes to implement boost-type PFC topologies.

Question: Is this suitable for 85-265VAC universal input designs?
Answer: Absolutely – the wide 9-20V supply range supports universal input via auxiliary winding.

Question: What protection features are included?
Answer: Integrated safeguards include undervoltage lockout (UVLO) and overvoltage protection (OVP).

Question: Can it operate in discontinuous conduction mode?
Answer: No – the NCP1654BD133R2G is optimized exclusively for CCM operation.

Question: How does PFC benefit my power supply design?
Answer: It reduces line current harmonics, improves efficiency by up to 15%, and prevents transformer hum.

Question: Are evaluation boards available for this IC?
Answer: Yes – contact PCX technical support for onsemi development kit recommendations.

Order your NCP1654BD133R2G PFC controllers today – limited stock available for immediate shipment!

Product images are representational. Refer to datasheet for exact specifications.