Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: Typhoon 24V-input convertors
Edited by the Electronicstalk Editorial
Team on 23 September 2004
24V-input convertors aim for basestation
power
Artesyn Technologies has added 24V-input eighth-bricks and quarter-bricks to its Typhoon family of board mounted DC/DC convertors.
Artesyn Technologies has added 24V-input eighth-bricks and quarter-bricks to its Typhoon family of board mounted DC/DC convertors The convertors offer unprecedented efficiencies and power densities - setting a new performance standard for the industry
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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The new product series initially comprises two 20A eighth bricks and two 30A quarter bricks, offering single isolated outputs of 1.8 and 3.3V.
All four convertors provide more useable power than any equivalent competitive unit on the market - the 1.8V/30A quarter brick, for example, is over 7% more efficient than its nearest rival, dissipating 46% less power.
This translates directly into more power being made available to the load, easier thermal management and higher reliability.
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.
Artesyn's 24V input Typhoon brick convertors are primarily intended for 27V wireless basestations, space-critical telecomms applications and general 24V industrial electronics systems.
They are also ideal for use in legacy 24V microwave and optical fibre equipment.
The convertors' nominal 24V input accommodates any voltage in the range 18 to 36V, making them suitable for distributed power architecture (DPA) systems with either 24 or 28V DC power distribution buses.
These latest 24V input Typhoon eighth- and quarter-bricks employ a full wave coupled-inductor topology in conjunction with a patented processor-controlled synchronous rectifier circuit to maximise conversion efficiency.
Both the eighth- and quarter-brick 1.8V output models provide exceptionally high full load efficiencies of 91%, and the 3.3V models are in the same league at 90%.
Unlike competitive products which frequently exhibit hotspots around the power stage components, all Typhoon convertors are designed to have an evenly distributed thermal profile across their surface.
This has the key advantage that the convertors have virtually the same thermal derating characteristics regardless of their mounting orientation, further increasing their design flexibility.
The 24V input eighth- and quarter-brick convertors are designed for operation over an ambient temperature range of -40 to +85C without a heatsink and are suitable for both convection cooled and forced air environments.
Typhoon 24V input eighth-brick and quarter-brick convertors feature an open frame, single board construction designed for horizontal, through-hole mounting.
They have very low above-board profile of just 7.6mm, enabling them to be used under mezzanine cards and in systems involving very tight card pitches.
The eighth-bricks have an industry-standard 58.4 x 22.9mm footprint and use the same pinout as quarter-bricks, enabling designers to easily incorporate higher performance, more cost-effective convertors in existing products, without changing board layout.
The 24V input quarter bricks have an industry-standard 58.4 x 36.8mm footprint.
The output of each convertor can be adjusted from 80 to 110% of nominal using a single trim resistor, enabling designers to accommodate a variety of supply needs with a single convertor and facilitating voltage margin testing in systems.
Design-in flexibility is further enhanced by the fact that the convertors have no minimum load requirement, and provide a true monotonic startup characteristic under both normal and prebiased load conditions.
The convertors feature differential remote sense and remote on/off facilities, as well as undervoltage lockout and nonlatching overvoltage protection.
They are also fully protected against short-circuit and overtemperature conditions, with automatic recovery.
The convertors carry a full set of international safety approvals, including UL/cUL60950 and EN60950-1 VDE.
They also feature basic insulation, with functional (operational) isolation tested to 2250V DC, facilitating use in IEEE802.3af (power-over-Ethernet) applications.
Artesyn's 24V input Typhoon brick convertors are available for immediate delivery.
In quantities of 1000, unit prices are US $54.45 for the 20A eighth bricks, and US $78.95 for the 30A quarter bricks.
Standard lead time is stock to 8-10 weeks ARO.
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