Server Processors | FPGAs | Supercomputers | Telecom, Networking, Datacenter | Graphics & Video Processors
Digital DC-DC Power Module
Power management has become a critical issue in telecom,
networking and computing applications. The considerations involved
go beyond a simple efficiency calculation, requiring developers of
data centers, telecom central offices, cloud infrastructure and
hyperscale installations to consider factors such as thermal and
load management.
Digital control techniques offer you a comprehensive solution to
provide monitoring and management functions. Monitoring voltage,
current, power and temperature allow you to measure the power
demand of the system and actively control the units. These monitoring
functions can also be configured to generate warnings if shutdown
points are approached, which improves system reliability and can
improve up time.
Digital and analog converters have much in common, with similar
power switching devices and magnetic structures (inductors and
transformers). However, the vital inner control loop design, which
has traditionally been the domain of analog engineers, can now be
implemented using digital techniques. Communications, monitoring
and control are implemented over the industry-standard PMBus
®
command protocol.
In the design phase, digital control means that a unit can be
configured to be optimal for the system/application with far greater
flexibility than analog controlled units. In deployment, the power
system can dynamically adapt to changes in operating conditions –
all in real time.
The movement to a digital distributed power architecture allows
much greater flexibility and control in system design, management
and monitoring functions.
300 W, 500 W
and 700 W
Isolated Bricks
200 W
Non-isolated Unit
Isolated:
48 V Input
Non-isolated:
7.5 – 14 V Input
Isolated Brick
Output: 12 V
Non-isolated
Output: 0.6 – 5.2 Vdc
Standard PMBus
Controlled
Isolated and
Non-isolated Units
DOSA
Footprint
Isolated Brick
Form Factor
Artesyn Digital DC-DC Converters
Digital control and monitoring enables a wide range of functions not typically
available when using analog-controlled modules, including application-tailored
overcurrent protection limits, temperature warning levels, reporting of fault conditions,
modified output voltages, and real-time power and efficiency monitoring, all via the
PMBus interface. For example, some processors have recommended power rail
start-up characteristics, which can be configured digitally and applied to the
DC-DC module. Control loops can also be modified to accurately suit the transient
load characteristics of applications.
Isolated DC-DC Modules
These single output isolated modules offer excellent thermal performance, which,
together with an enhanced pre-bias start-up capability, makes them an ideal
choice for use in data processing and telecommunication applications, particularly
in the application of supplying power to non-isolated modules.
Their open-frame design is optimized for forced air or conduction cooling or an
aluminum baseplate option is available for enhanced thermal performance.
Artesyn’s isolated digital DC-DC converters are low profile units that are ideal for
systems with demanding inter-board spacing requirements; the open-frame models
have an installed height of 0.43 inch (11 mm), while the baseplate versions require
0.52 inch (13.3 mm).
The 1/8 brick and 1/4 brick units follow the industry standard PMBus interface
DOSA footprints, giving you options to scale your power module with your
application, from 300 to 700 watts.
Artesyn has a growing
range of digital DC-DC
converters in standard
telecom brick outline
and pin configuration
300 W
1
⁄
8
Brick
ADO300
• 36 – 75 V input range
• Up to 26 A output current
• 11.7 V output voltage
• 95.2% typical efficiency
500 W
1
⁄
4
Brick
ADQ500
• 36 – 75 V input range
• Up to 42 A output current
• 12 V output voltage
• 96% typical efficiency
700 W
1
⁄
4
Brick
ADQ700
• 40 – 60 V input range
• Up to 58 A output current
• 12 V output voltage
• 96% typical efficiency
LGA80D 200 W Non-isolated Unit
With a footprint of 1” (25.4 mm) by 0.5” (12.5 mm), the LGA80D represents one of
the highest density current ratings available in the industry. This innovative unit offers
two 40 amp outputs, which can either be configured to a single 80 amp output or
completely independently controlled. It is also possible to generate a higher current, up
to 320 amps as a single power rail, by connecting up to four units in parallel.The wide
trim feature of the LGA80D (from 0.6 to 5.2 volts) makes it suitable for use with a
broad range of semiconductor devices.
The Artesyn LGA80D offers 95.5% typical efficiency, one of the highest available in
this category. When subjected to a cooling airflow of 200 lfm (1 m/Sec), the derating
of the unit commences at an ambient air temperature of 70 °C.
200 W
LGA80D
• 7.5 – 14 Vdc input voltage
• Up to 80 A (two 40 A channels) output current
• 0.6 – 5.2 V output voltage
• Up to 95.5% typical efficiency
Evaluation Kits
Artesyn offers two evaluation kits for the range of digital DC-DC modules, to cover the
isolated and non-isolated units. Using these evaluation kits, you can connect the
demonstration board to a USB socket on a PC with the PMBus interface dongle and
cable provided, and control and monitor the DC-DC modules as they would be used in
an application.
There are hardware functions on the demonstration board that allow you to enable and
select an output voltage by simple dip-switch settings, and the board provides voltage
and ripple measurement points. The isolated demonstration board can be connected
to the non-isolated board, enabling you to test the full DC-DC conversion process from
48 V DC input at the system level to the low voltages at the processor level, with digital
control throughout.
The
1
/
8
brick and
1
/
4
brick units follow the industry standard PMBus interface DOSA
footprints, giving you options to scale your power module with your application, from
300 to 700 watts.
Isolated:
A single demonstration board can
be used with all three isolated modules.
Isolated and Non-isolated Converters
in a Centrally Controlled Network
40 A O/P
Non-isolated:
The demonstration board
is populated with two LGA80D modules,
allowing you to test independent channel
or stacked-module operation.
12 V O/P Bus
Converter
48 Vdc
IN
12 V
Bus
40 A O/P
80 A O/P
ADQ500
PMBus Digital
Communications
40 A O/P
40 A O/P
LGA80D x 3
Artesyn produces an exceptionally broad range of products spanning every aspect of the computing,
storage and networking market sector. These include front-end AC-DC and DC-DC power supplies,
isolated brick-type DC-DC converters, and non-isolated point-of-load (POL) DC-DC converters.
Artesyn Embedded Technologies is a global leader in the design and
manufacture of highly reliable power conversion solutions for a wide range
of industries including communications, computing, consumer, medical,
aerospace and industrial automation.
Artesyn Embedded Technologies is one of the world’s largest and most
successful power supply companies, also embracing the well-known
Astec brand. The company’s extensive standard AC-DC product portfolio
covers a power range of 3 watts to 24 kilowatts and includes open-frame
and enclosed models, highly configurable modular power supplies, rack-
mounting bulk front end units, DIN rail power supplies, external power
adapters and power supplies for LED lighting. Many of these products are
available in medically approved versions and a large number of the higher
power models feature extensive built-in intelligence.
As an industry leader in distributed power applications, Artesyn produces
an exceptionally wide range of DC-DC power conversion products. These
include isolated DC-DC converters, covering industry-standard sixteenth-
to full-brick form factors with power ratings from 3 watts to 800 watts.
Artesyn also offers three application-optimized families of non-isolated
DC-DC converters, non-isolated memory power, and processor voltage
regulator modules (VRMs).
As a pioneer in low power switch mode adapters, Artesyn has designed
and manufactured solutions for almost every major mobile phone supplier.
With well over one billion chargers shipped from its best-cost facilities,
Artesyn has aligned itself to meet the demands for the next billion chargers
through new platforms, automated manufacturing methodology and
unsurpassed quality and reliability.
For more than 40 years, customers have trusted Artesyn to help them
accelerate time-to-market and shift development efforts to the deployment
of new, value-add features, and services. Artesyn has over 20,000
employees worldwide across ten engineering centers of excellence, four
world-class manufacturing facilities, and global sales and support offices.
WORLDWIDE OFFICES
Americas
2900 S.Diablo Way
Tempe, AZ 85282
USA
+1 888 412 7832
Europe (UK)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
+44 (0) 1384 842 211
Asia (HK)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
+852 2176 3333
www.artesyn.com
For more information:
www.artesyn.com/power
For support:
productsupport.ep@artesyn.com
DigitalDCDC – R1 June 2017
Artesyn Embedded Technologies, Artesyn and the Artesyn Embedded Technologies logo are
trademarks and service marks of Artesyn Embedded Technologies, Inc. All other names and logos
referred to are trade names, trademarks, or registered trademarks of their respective owners.
Specifications are subject to change without notice. © 2017 Artesyn Embedded Technologies, Inc.
All rights reserved. For full legal terms and conditions, please visit www.artesyn.com/legal.
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