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TMCNet:  World's First Three-Channel Interleaved CCM PFC Controller Allows Designers to Use the Smallest Passive Components

[March 31, 2014]

World's First Three-Channel Interleaved CCM PFC Controller Allows Designers to Use the Smallest Passive Components

SAN JOSE, Calif. --(Business Wire)--

Designers of high power applications, such as air conditioner power supplies, need power factor correction (PFC) to improve power factor (PF) and harmonics to avoid deteriorating the power grid. To help address these challenges, Fairchild now delivers a unique combination of power devices, design expertise and manufacturing experience to its customers, allowing them to power amazing electronic products.

An industry-first, the FAN9673 is an interleaved continuous conduction mode (CCM) PFC controller that enables high power PFC control using the smallest possible inductors and lowest possible power rating switching devices, extending the capacitors' lifetime.

Unlike other solutions that provide two or less channel capabilities with fewer features, the FAN9673 can easily switch between one-, two- or three-channels with good phase management. The device also features a simple differential current sensing resistor and configurable output voltage control, enabling an easy, compact, cost-effective design for high power PFC applications up to 9 kW.

"Fairchild is committed to understanding customer needs and developing power solutions that are best for that individual customer," said DH Cho, Vice President, Power Conversion at Fairchild. "By listening to what our customers needed, we developed the FAN9673 to help designers improve the stability and efficiency of their designs, while at the same time reducing cost and saving board space."

Key Features:

  • Continuous Conduction Mode Control
  • Maximum Three Channels PFC Control
  • Differential Current Sensing
  • Programmable Operation Frequency Range: 18 kHz~40 kHz or 55 kHz~75 kHz
  • Programmable PFC Output Voltage
  • Two Type Current Limit Function
  • TriFault Detect™ Functionality Protects Against Feedback Loop Failure

Applications:

  • High Power AC-DC Power Supply
  • DC Motor Power Supply
  • White Goods e.g. Air Conditioner Power Supply
  • Server and Telecom Power Supply
  • UPS
  • Industrial Welding Power Supply


Price:
in 1,000 quantity pieces
FAN9673: US $3.45 Availability:
Samples available upon request
Delivery:
6-10 weeks ARO

Related Links:

Datasheet:
http://www.fairchildsemi.com/ds/FA/FAN9673.pdf

Product Folder:
http://www.fairchildsemi.com/pf/FA/FAN9673.html

Application Notes:

User Guide for FEBFAN9673_B01H2500A Evaluation Board: 2.5 kW Three-Channel CCM (News - Alert) PFC with 12 VSB Module Evaluation Board
http://www.fairchildsemi.com/an/AN/AN-FEBFAN9673_B01H2500A.pdf

User Guide for FEBFAN9673_B01H5000A Evaluation Board: 5 kW Three-Channel CCM PFC with 12 VSB Module Evaluation Board
http://www.fairchildsemi.com/an/AN/AN-FEBFAN9673_B01H5000A.pdf

About Fairchild Semiconductor:

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear - anticipate the power efficiencies demanded by tomorrow's electronic products and deliver an amazing design experience. Please contact us on the web at http://www.fairchildsemi.com

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