Fairchild Semiconductor’s High-Speed, Low-Side Gate Drivers Enable Higher Efficiency Power Supplies
February 10 2009 - 11:32AM
Business Wire
Fairchild Semiconductor (NYSE: FCS) expands its family of
high-speed, low-side gate drivers with the addition of the single
1A and 9A drivers. All of these drivers enable higher density,
higher efficiency and more reliable power supplies. With the
addition of single 1A and 9A drivers to the previously released
single 2A, dual 2A and dual 4A drivers, the FAN31xx and FAN32xx
series now offers the industry�s best combination of performance,
size and design flexibility for switch-mode power-supply (SMPS)
designs, synchronous rectifiers, pulse transformer drivers and
motor control circuits.
Advantages of the FAN31xx series include:
- Rugged and high reliability
operation with a maximum voltage rating of 20V, reverse current
capability of at least 500mA, HBM ESD rating of 4kV or higher and
operation from -40� to 125�C.
- Choice of TTL or CMOS input
thresholds for all devices for best circuit compatibility.
- Two inputs for each channel
(dual-input or input+enable) on most of the devices to simplify
designs.
- Short, precisely-controlled time
delays for 1MHz+ switching and for optimizing drive timing to
maximize efficiency.
- MillerDrive� compound gate drive
architecture, providing efficient current delivery where it is most
needed at the Miller plateau voltage region of the MOSFET�s
switching cycle.
- Package options include the
industry�s smallest packages (2x2 and 3x3 mm MLP) and industry
standard SOT-23 and SOIC-8 packages.
The new FAN3111 family provides a strong 1A gate drive in a
small five-pin SOT-23 package for cost-sensitive gate drive
applications or as distributed drivers for parallel power devices.
The FAN3111 can cost-effectively replace discrete totem-pole
drivers. The CMOS input configuration option FAN3111C is offered
with dual inputs to allow a non-inverting or an inverting
configuration with an enable function. The FAN3111E includes a
single, non-inverting input with its thresholds referenced to an
external voltage for use with controllers that operate from a lower
supply voltage than the driver.
The new FAN3121/22 9A driver family provides solutions for
driving large loads with over 10A of peak gate drive current. The
pin-out is compatible with many industry standard 6A, 9A and 12A
drivers. In addition, an enable function for the driver is included
on the pin, which previously was left unused in the industry
standard pin-out. The enable pin when left open will be internally
pulled up for active high logic and can be left open if no enable
function is needed or for potential drop-in capability into
existing designs.
With a choice of input thresholds and packaging along with
rugged, industrial-grade ratings and short and well-controlled time
delays, these low-side drivers eliminate the need for tradeoffs and
provide designers the best options to optimally fit each design.
With the addition of the 1A and 9A gate driver families, these
products augment a comprehensive suite of power solutions from
Fairchild Semiconductor to enable high-efficiency, low-standby
power AC-DC switch-mode power supplies and high-performance
isolated DC-DC power converters.
The FAN31xx and FAN32xx series utilizes lead-free (Pb-free)
terminals and have been characterized for moisture sensitivity in
accordance with the Pb-free reflow requirements of the joint
IPC/JEDEC standard J-STD-020.
Price:
FAN3111 Family in SOT23-5 (1000, pcs.) US$ 0.33
FAN3121/22 Family in SOIC-8 (1000, pcs.) US$ 0.89
FAN3121/22 Family in MLP-8 (1000, pcs.) US$ 0.99
Availability: Samples available now
Delivery: 8 weeks ARO
Contact Information:
To contact Fairchild Semiconductor about this product, please go
to: http://www.fairchildsemi.com/cf/sales_contacts/.
For information on other products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com.
Note to Editor:
http://www.fairchildsemi.com/ds/FA/FAN3111E.pdf
http://www.fairchildsemi.com/ds/FA/FAN3111C.pdf
http://www.fairchildsemi.com/ds/FA/FAN3121T.pdf
http://www.fairchildsemi.com/ds/FA/FAN3121C.pdf
http://www.fairchildsemi.com/ds/FA/FAN3122T.pdf
http://www.fairchildsemi.com/ds/FA/FAN3122C.pdf
AN-6069-Application Review and Comparative Evaluation of
Low-Side Gate Driver
http://www.fairchildsemi.com/an/AN/AN-6069.pdf
Low-Side Gate Drivers Web Page:
http://www.fairchildsemi.com/products/power_drivers/low_side_gate_drivers.html
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) is a global leader
delivering energy-efficient power analog and power discrete
solutions. Fairchild is The Power Franchise�, providing
leading-edge silicon and packaging technologies, manufacturing
strength and system expertise for consumer, communications,
industrial, portable, computing and automotive systems. An
application-driven, solution-based semiconductor supplier,
Fairchild provides online design tools and design centers worldwide
as part of its comprehensive Global Power ResourceSM. Please
contact us on the web at www.fairchildsemi.com.
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