Product category:
DC/DC Convertors
News Release from: Ericsson Power Modules | Subject: PKM4402NG
Edited by the Electronicstalk Editorial
Team on 13 April 2006
Convertor packs two quarter bricks into
one
A new intermediate bus convertor is the first in the world to provide up to 660W in a quarter brick package.
Designed for absolute maximum power density and high efficiency, Ericsson Power Modules' PKM4402NG is an intermediate bus convertor (IBC) useable with a narrow input range, and is the first in the world to provide up to 660W in a quarter brick package The extreme high power density (475W/cubic inch) of the PKM4402NG packs two quarter bricks into the space of one, providing twice the power compared with previous generation of IBC products on the market
This article was originally published on Electronicstalk on 9 Dec 2002 at 8.00am (UK)
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Upgrade for lead-free convertors
Ericsson Power Modules is upgrading its PKD series of lead-free DC/DC convertors to lead-free assembly processes.
Accordingly OEMs and end users save board space, design time and purchase costs by using just one quarter brick where previously two were required.
The PKM4402NG is optimised for use as an IBC by customers using a non-battery-backed nominal 48V input system.
With a 38-55V input range, the PKM4402NG is also completely n+1 parallelable without external circuitry.
Further reading
Quarter bricks have minimum environmental impact
Combining competitive pricing with excellent performance and reliability, Ericsson Power Modules' PKM-E quarter bricks are designed to offer minimum environmental impact to meet future legislation.
Point of load regulators lower headroom
As a point of load (POL) regulator in distributed power architectures, the PMC4000 regulator claims to offer designers clear advantages where both board space and component height are limited.
Suitable application areas for the PKM4402NG include computing, storage area networks, industrial computers, routers and blade servers.
The device's high efficiency increases system reliability and reduces lifetime costs.
Factors driving the demand for this type of product are the increasing use of intermediate bus architecture and the more common use of point of load (PoL) devices.
Here, the IBC improves the overall system efficiency and reduces the cost compared with using a "standard" regulated DC/DC convertor.
Where a traditional isolated convertor at its best provides 92-93% efficiency and up to 17-18A at 12V output, these latest IBC devices from Ericsson have figures up to 97% efficiency and 63A, at all input voltages.
This high efficiency figure is not "just a number", it reduces the total cost of ownership, and importantly these days, it contributes to reduce global energy consumption, which is part of Ericsson Power Modules' design for environment (DfE) programme.
The best in its class in terms of power density, the PKM4402NG is the latest addition to Ericsson Power Modules extensive IBC programme that includes the recently launched wide input range quarter bricks and the soon to be launched eighth and sixteenth bricks for both 36-75 and 38-55V inputs.
Additionally, Ericsson also has a low cost IBC programme for applications with lower power needs - below 300W.
This truly state-of-the-art product has been designed using the most advanced technology available on the market.
This, combined with the innovative use of different topologies that are optimised for maximising the efficiency, led to this world record breaking design for power density.
The high output current up to 63A provides the user with unprecedented available power levels at all line and load conditions even when the full input range is utilised.
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