Power Factor Correction – PFC NCP1654 – 133KHZ

NCP1654BD133R2G – PFC Controller IC – onsemi Power Factor Correction Solution

Optimize your power systems with the NCP1654BD133R2G Power Factor Correction (PFC) controller from onsemi. This high-performance IC delivers efficient power management for AC-DC conversion, reducing harmonic distortion and improving energy utilization. PCX ensures genuine onsemi components with same-day shipping and technical support for your design projects.

Key Features

• Switching Frequency: 120kHz to 146kHz operation
• Ultra-Low Startup Current: 75 µA for reduced power loss
• Wide Voltage Range: 9V to 20V supply
• Robust Temperature Handling: -40°C to 125°C operating range
• Continuous Conduction Mode (CCM): Enhanced efficiency for medium-to-high power applications
• Compact Design: 8-SOIC surface-mount package (3.90mm width)

Technical Specifications

This active PFC controller utilizes Continuous Conduction Mode to maintain high power factor across load variations. The device features precise frequency control within its 133kHz nominal range and operates reliably in industrial temperature environments. Housed in a space-saving 8-SOIC package, it integrates critical protection circuits while complying with global energy efficiency standards. Download full datasheet for design implementation details.

Typical Applications

• Switched-Mode Power Supplies (SMPS)
• LED lighting drivers and ballasts
• Server/telecom power systems
• Industrial motor controllers
• Consumer electronics AC adapters

About onsemi

onsemi (ON Semiconductor) is a global leader in energy-efficient innovations, delivering semiconductor solutions for automotive, industrial, and cloud-power markets. With over 50 years of expertise, the company holds 10,000+ patents and maintains ISO-certified manufacturing facilities worldwide.

onsemi’s power management portfolio features industry-leading reliability metrics, with rigorous testing protocols ensuring component longevity. Their PFC controllers consistently meet international efficiency standards like 80 PLUS and ENERGY STAR, making them preferred solutions for mission-critical power designs.

About Power Factor Correction ICs

Power Factor Correction controllers are essential for modern AC/DC power conversion, aligning current waveforms with voltage phases to minimize reactive power. Without PFC, systems experience reduced efficiency, increased heat generation, and potential non-compliance with utility regulations.

Advanced PFC ICs like the NCP1654 series dynamically adjust switching characteristics to maintain near-unity power factors (>0.95) across load conditions. This technology reduces grid pollution, lowers operating costs, and enables compact power supply designs by decreasing component stress and heat dissipation requirements.

Packaging Options

Available in industry-standard formats including Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® packaging. Specify your preferred option when ordering for automated assembly compatibility.

Frequently Asked Questions

Q: What’s the difference between CCM and CrM PFC operation?
A: Continuous Conduction Mode (CCM) maintains current flow throughout the switching cycle, offering higher efficiency for >300W applications. Critical Mode (CrM) operates at boundary conduction, better suited for lower power designs.

Q: Does this IC require external MOSFETs?
A: Yes, the NCP1654BD133R2G is a controller IC that drives external power transistors. Refer to the datasheet for recommended MOSFET pairings.

Q: Can it operate from rectified 120V/230V AC mains?
A: When paired with proper rectification and bulk capacitors, its 9-20V supply range supports universal input designs via auxiliary winding or startup circuit.

Q: What certifications does this device carry?
A: The IC meets IEC61000-3-2 harmonic current limits and is designed to comply with global energy standards including DOE Level VI and EU CoC Tier 2.

Q: How does the startup current affect system design?
A: The ultra-low 75µA startup current enables smaller, lower-cost startup resistors and reduced standby power consumption.

Q: Is this suitable for automotive applications?
A: While industrial-grade (-40°C to 125°C), this variant isn’t AEC-Q100 qualified. Contact PCX for automotive PFC solutions.

Get Your Genuine onsemi Component

Design with confidence using authentic NCP1654BD133R2G controllers from PCX – your trusted source for certified semiconductors. Our warehouse maintains ready stock with no minimum order quantities. Order by 3PM EST for same-day shipping! Need technical guidance? Our engineering support team is ready to assist.

Product images are representational; refer to datasheets for exact specifications.