Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: RFB300/350 series
Edited by the Electronicstalk Editorial
Team on 06 December 2004
Half bricks produce more usable power
Artesyn Technologies has launched a series of high-efficiency half-brick isolated DC/DC convertors that provide exceptionally high levels of usable power.
Artesyn Technologies has launched a series of high-efficiency half-brick isolated DC/DC convertors that provide exceptionally high levels of usable power The new RFB300/350 series of convertors includes models capable of delivering up to 350W continuously and without derating, across a very wide baseplate temperature range of -40 to +100C
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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Designed to generate a nominal 12 or 28V DC isolated output, the convertors are primarily intended for use with high performance RF (radio frequency) power amplifiers and equipment used in high availability applications such as cellular communication systems.
The convertors' wide operating temperature range makes them ideal as a compact power source for use in demanding outdoor environments, supporting cellular basestation equipment and last mile broadband equipment.
The RFB300/350 series comprises four models; one with a 24V nominal (18 to 36V) input, and three with 48V nominal (36 to 75V) inputs.
Further reading
Artesyn extands 24V DC/DC range to 30A
Artesyn Technologies has added a new member to its BXB family of industry standard, half-brick DC/DC converters.
New standard in efficiency from DC/DC Converters
Artesyn Technologies has introduced the EXB30 series of high-efficiency, single-output, open-frame, isolated DC/DC converters.
Artesyn releases 2000 Power Supply Handbook
Comprehensive catalogue features wide range of new AC/DC and DC/DC products.
The 24V input model provides an output of 11A/28V (308W).
The three 48V input models provide outputs of 11A/28V (308W), 12.5A/28V (350W) and 29.2A/12V (350W).
To give the user added flexibility, each model comes as standard with a trim function allowing output voltage ranges of 16.8-29.4V (28V) and 7.2-13.2V (12V).
This wide selection of input and output options enables these units to address a broad array of telecom, networking and industrial applications.
All four models use an advanced forward convertor topology and fixed-frequency switching to provide very high conversion efficiencies of up to 91% at full load.
This minimises internal power dissipation, which simplifies thermal management and contributes to the convertors' excellent reliability.
The 28V output models, for example, have a calculated MTBF of more than 2.6 million hours at 55C (in accordance with Telcordia SR-332).
RFB300/350 series convertors have an industry-standard 57.7 x 60.7mm half-brick form-factor, and offer a choice of 12.7 or 10.6mm profiles to suit the available above-board space.
The 10.6mm low-profile version of the 350W convertor has a very high power density, in excess of 9.4W/cm3, making it an ideal power solution for applications where space is severely limited.
The convertors are packaged as fully encapsulated units intended for through-hole board mounting, and incorporate aluminium baseplate technology for conduction cooling.
Various heatsink attachment methods are available, and the modules can be supplied with threaded or blank inserts to suit customers' preferences.
Artesyn's RFB300/350 series convertors have no minimum load requirement and maintain line and load regulation to +/-0.15% and +/-0.2%, respectively.
Remote sense and remote on/off facilities are provided as standard, with negative logic remote on/off available as an option.
The convertors also feature comprehensive protection against overcurrent, overvoltage and overtemperature conditions.
RFB300/350 series convertors carry a full set of international safety approvals, including EN60950 VDE, UL/cUL60950, and an IECEE CB Scheme test certificate and report.
Sample quantities of Artesyn's RFB300/350 series half-brick convertors are available for immediate delivery.
In OEM quantities of 1000, unit prices range from US $82.50 for the 308W, 24V-input model, to $90.75 for the 350W, wide-input model.
Standard lead time on all models is stock to 12 weeks.
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