Product category: DC/DC Convertors
News Release from: Artesyn | Subject: SXQ50 series
Edited by the Electronicstalk Editorial Team on 13 May 2002
SM quarter bricks feature
efficiencies up to 90%
Artesyn Technologies has a new family of surface-mount DC/DC convertors that produce up to 50W of output power from a quarter-brick open-frame package just 0.4in high
Artesyn Technologies has launched a new family of surface-mount DC/DC convertors that produce up to 50W of output power from a quarter-brick open-frame package just 0.4in high. Known as the SXQ50 series, the new convertors employ patent-pending fixed-frequency switching technology to maximise conversion efficiency, resulting in very low internal power dissipation and excellent reliability.
This article was originally published on Electronicstalk on 13 May 2002 at 8.00am (UK)
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The first four models in the series are available with 5.0, 3.3, 2.5 or 1.8V outputs - which can be trimmed from 90 to 110% of nominal - and are capable of delivering very high currents.
The 1.8 and 2.5V units are rated at up to 20A, the 3.3V unit at 15A, and the 5.0V model - which has a conversion efficiency of 90% - can deliver up to 10A.
Artesyn's SXQ50 series DC/DC convertors are designed specifically to meet the low-voltage, high-current demands of latest-generation semiconductor devices.
All the convertors feature a wide input voltage range of 33 to 75V, making them particularly suitable for systems employing a 48V distributed power architecture, including any that operate from a -48V central office battery plant.
The convertors have an industry-standard quarter-brick footprint of 58 x 37mm (2.3 x 1.46in), and are based on an open-frame single-board design which minimises weight, simplifies thermal management, and reduces required board space.
Further reading
RoHS-compliant 150W AC-DC power supplies
UR has introduced a new series of compact, RoHS-compliant 150W AC-DC power supplies from its partner Artesyn Technologies
Convertor brings power management to ATCA
Emerson Network Power has announced the availability of the industry's smallest front-end power solution to date for use on latest-generation telecomms cards
Emerson acquires Artesyn
The shareholders of Artesyn Technologies have voted to approve the company's acquisition via merger by Emerson Electric
Their low profile also means that rack-mounted systems can employ tighter interboard spacings, which is becoming increasingly important as designers pack more functionality into ever-tighter spaces.
Furthermore, Artesyn has specifically designed the layout of the convertors' input/output connections to match some of the other leading quarter-brick convertors on the market - including the company's own EXQ50 series of 50W through-hole mounting convertors - thereby addressing manufacturers' needs to secure a second source option.
Designers can very easily arrange for their PCBs to accommodate both surface-mount and through-hole mounting convertors.
All SXQ50 series convertors offer a voltage trim facility that enables the output to be adjusted between 90 and 110% of nominal.
This is a particularly useful feature for systems designers who wish to perform margin testing by varying supply voltages, and it also allows standard off-the-shelf DC/DC convertors to be used in applications involving highly specific voltage requirements, which would previously have demanded expensive customised power sources.
All four convertors in the series also offer a remote on/off facility, which is available with positive or negative logic.
The convertors have no minimum load requirement, and are comprehensively protected against over- and undervoltage, overtemperature and short-circuit conditions.
Artesyn's SXQ50 series DC/DC convertors have a wide operational temperature range, spanning from -40 to +90C ambient.
They feature a 1500V DC isolation rating and carry a full set of international safety approvals, including EN60950 (TUV Product Service) and UL/cUL60950.
The convertors are designed to meet all relevant standards for use in telecommunications equipment, including ETS 300-132-2 for maximum inrush current and supply voltage rise time.
SXQ50 series convertors meet the EN55022 level A standard for radiated emissions, and with the addition of a small number of external filtering components they can also meet the EN55022 level A and level B standards for conducted emissions.
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