Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: EXB100
Edited by the Electronicstalk Editorial
Team on 03 April 2002
Wide DC/DC trim range aids low-voltage
coverage
The latest half-brick 100W DC/DC convertor module is ideal for powering products employing the latest low-voltage semiconductors.
Artesyn Technologies has launched a half-brick 100W DC/DC convertor module that is ideal for powering products employing the latest low-voltage semiconductors Available with single 5.0, 3.3 or 1.8V outputs, the new EXB100 convertor is a high efficiency synchronous rectifier design that is capable of delivering very high output currents without the need for a heatsink
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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The 5V model is rated at 20A, while the 3.3 and 1.8V models are rated at 30A.
Each of these models features a voltage trim facility with an exceptionally wide range, enabling the output to be adjusted between 60 and 110% of its nominal value.
This means that the 1.8V model, for example, can be trimmed down to just 1.08V, yet still deliver its full 30A rated output at this voltage level.
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 ability to accommodate a wide range of output voltages with a single model provides users with significant advantages.
System designers can easily perform margin testing - which is becoming increasingly important as operating voltages drop to around the 1V level - simply by varying the supply voltage.
Furthermore, applications with highly specific voltage requirements can now be powered by standard off-the-shelf DC/DC convertors, whereas they would previously have demanded expensive customised power sources.
Artesyn's EXB100 series convertors are open-frame units intended for through-hole PCB mounting, with an industry-standard half-brick footprint of 61 x 58mm.
Based on a single board design, they are constructed entirely from surface-mount components - including planar magnetics - which helps keep the height down to just 10mm.
All EXB100 series convertors accommodate a wide operational temperature range of -40 to +90C ambient, and are expressly designed as high reliability products, using very conservative component derating criteria.
Their high conversion efficiency and consequent low internal power dissipation means that they can be used without heatsinks for many applications.
The 3.3V model, for example, has an efficiency of 90.5%, which typically means that with just 1m/s of forced air cooling, it can deliver its full 30A output at ambient temperatures of up to 50C.
EXB100 series convertors are primarily intended for the networking, telecoms and wireless markets, where small size, lower output voltages with higher currents, low profile and high efficiency are all key demands.
They feature a wide input voltage range of 36 to 75V DC, making them especially suitable for use in systems employing a 48V distributed power architecture.
Typical applications include high-end routers and switches, optical networking products, transmission systems and wireless base stations.
All three versions of the EXB100 offer a remote on/off facility, with the option of positive or negative logic inputs.
The convertors have no minimum load requirement, and are comprehensively protected against overvoltage, overtemperature and short-circuit conditions.
A combination of non-latching clamping over-voltage protection and continuous current limit protection is employed to help maximise system uptime, by ensuring that the convertor will continue to deliver power even when in failure mode.
Artesyn's EXB100 series DC/DC convertors have a 1500V DC isolation rating and carry a full set of international safety approvals, including TUV Product Service and UL/cUL1950.
The convertors are designed to meet all relevant standards for use in telecommunications equipment, including ETS 300-019 for environmental protection, ETS 300-132-2 for maximum inrush current and supply voltage rise time, and ETS 300-386-1 for EMC issues.
With the addition of a small number of external filtering components, EXB100 series convertors can meet the EN55022 level A and level B standards for conducted noise emissions.
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