Fairchild Semiconductor’s Global Power ResourceSM Center Develops Innovative BLDC Motor Control Reference Design

  Fairchild Semiconductor’s Global Power ResourceSM Center Develops Innovative
  BLDC Motor Control Reference Design

     Reference Design Incorporates Power Factor Correction, Enables Rapid
                        Prototyping and Implementation

Business Wire

SAN JOSE, Calif. -- June 10, 2013

R&D engineers worldwide face various issues as their local industries align
with the global trend toward BLDC electric motors, transitioning away from
traditional AC designs. To help designers meet these challenges, Fairchild
Semiconductor's (NYSE: FCS) China-based Global Power Resource^SM Center (GPRC)
has developed a reference design for Brushless DC (BLDC) motor controller
applications using SPM® smart power modules, and incorporating Power Factor
Correction (PFC), to enable designers to simplify design, reduce Bill of
Material (BOM) costs and develop rapid prototypes.

Reference design RD-401 supports inclusion of the FCM8531 3-phase PMSM/BLDC
controller, the FSB50550A smart power module, the FAN6961 Boundary Mode PFC
Controller, and the FSL306LRN Green Mode Fairchild Buck Switch in design of
PMSM motor drive solution up to 200W.

Key features of the solution include:

  *Total solution for PMSM motor drive
  *High PF Low THD
  *Wide Vin range: 90-265VAC
  *PFC On/Off selectable
  *Each functional block can be evaluated independently
  *Demo program pre-programmed
  *Rich protection on each circuit block

Reference design RD-401 can be found on the Fairchild website at:

RD-401 successfully addresses these challenges designers face when
transitioning to BLDC designs by optimizing the PCB layout, the current
sampling circuits, and the current sampling algorithm. The use of the FCM8531
controller in this solution allows a variety of reference designs, together
with an integrated development environment – the Motor Control Development
System (MCDS) – which incorporates three drive modes. Using these tools,
developers and design engineers can quickly implement a motor drive design and
promptly assess the results.

Additionally, the new reference design incorporates a Power Factor Correction
(PFC) block, with the aim of improving power transmission efficiency. In
addition the PFC module acts as the voltage pre-regulator. It is able to
convert a broad input voltage range of 90-264VAC to 400VDC and below. This
allows the power device and motor to have a small current rating, while
outputting at a higher power.

"This new reference design is fully-functional and includes all of the
circuitry required for running a motor," noted Jian Wang, China Regional Sales
Director and Director of Motion Control, Asia Pacific, Fairchild
Semiconductor. "Customers only need to connect three wires to the motor.
Furthermore, the PFC can be disabled by simply disconnecting the jumper,
allowing customers to easily assess whether PFC benefits performance. A
debugging and development interface allows for further adjustment and
optimization. This high price-performance, energy-saving design helps ensure
an optimal time-to-market for our customers."

Fairchild’s power components and support for motor control design in home
appliances and industrial applications address consumer and regulatory-led
demand for more energy-efficient, better performing appliances and electronic

Fairchild Semiconductor Global Power Resource^SM Centers are a valuable
resource for system design engineers, enabling them to quickly differentiate
their designs and shorten time-to-market. The centers were established to
deliver innovative, efficient power management and mobile solutions targeting
a wide range of applications both locally and around the world. This solution
was developed at the GPRC located in China. The company has other centers in
Greater China, in Shenzhen and Taipei, and in the United States, Germany,
South Korea and Brazil.

For information on the devices in this reference design, please visit:

FCM8531: http://www.fairchildsemi.com/pf/FC/FCM8531.html
FSB50550A: http://www.fairchildsemi.com/pf/FS/FSB50550A.html
FAN6961: http://www.fairchildsemi.com/pf/FA/FAN6961.html
FSL306LRN: http://www.fairchildsemi.com/pf/FS/FSL306LRN.html

Contact Information:

To contact Fairchild Semiconductor about this product, please go to:

For information on other products, design tools and sales contacts, please
visit: http://www.fairchildsemi.com.

About Fairchild Semiconductor:

Fairchild Semiconductor (NYSE: FCS) – global presence, local support, smart
ideas. Fairchild delivers energy-efficient, easy-to-use and value-added
semiconductor solutions for power and mobile designs. We help our customers
differentiate their products and solve difficult technical challenges with our
expertise in power and analog and mixed signal products. Please contact us on
the web at http://www.fairchildsemi.com.

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Fairchild Semiconductor
Paul R. Hughes, 1-800-341-0392 X 3110
Public Relations Manager
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