Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: Artesyn LES series
Edited by the Electronicstalk Editorial
Team on 02 August 2007
Eighth-bricks bring efficiency to
telecomms power
Second-generation eighth-brick DC/DC convertors provide up to 93% full load efficiency.
Emerson Network Power has launched four Artesyn eighth-brick DC/DC convertors featuring second-generation power conversion topology that provides up to 93% full load efficiency The latest additions to the Artesyn LES series of convertors offer designers a choice of 22A/2.5V, 20A/3.3V, 13A/5V and 6.7A/12V
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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All four convertors feature a wide input voltage range of 36 to 75V DC, making them ideal for use with telecomms-standard 48V supplies, and are fully protected against input voltage transients of up to 100V for 100ms.
The convertors' outputs can be adjusted from 90% to 110% of nominal, using an external trim resistor.
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 have a typical startup time of 20ms when driving a resistive load, and feature differential remote sense and remote on/off facilities as standard.
In common with all Artesyn LES series eighth-brick DC/DC convertors, the latest models have an industry-standard 58.4 x 22.9mm footprint, which is 38% less than conventional quarter bricks, and are based on an open-frame, single-board package.
The new models are available in both through-hole and surface-mounting configurations, and use surface-mount components and planar, in-the-board transformer structures to help minimise profile, allowing the installed height to be kept to just 8.1mm.
This exceptionally low profile means that the convertors are suitable for applications involving very tight inter-board spacing, such as latest-generation telecomms switches and high-end servers.
The convertors' pinout is identical to standard quarter-brick convertors, facilitating drop-in replacement.
The convertors are specified for operation over an ambient temperature range of -40 to +85C.
Standard features include undervoltage lockout and nonlatching overvoltage protection, as well as protection against short-circuit and overtemperature conditions, with automatic recovery.
The convertors carry a full set of international safety approvals, including EN60950 TUV and UL/cUL60950.
Artesyn LES series eighth-brick convertors are available for immediate delivery, and the standard lead-time for quantity orders is stock to 8 weeks.
Pricing in 1000-piece quantities is US $28.
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