Product category:
DC/DC Convertors
News Release from: Vicor UK | Subject: VIC-in-a-Brick
Edited by the Electronicstalk Editorial
Team on 13 August 2003
Power chips replace quarter-brick
convertors
Vicor has adapted its new VI chips to the footprint and pinout of a telecomms-standard, through-hole quarter-brick intermediate bus "DC transformer".
Vicor has adapted its new VI chips to the footprint and pinout of a telecomms-standard, through-hole quarter-brick intermediate bus "DC transformer" This "VIC-in-a-Brick" format makes it easy to retrofit a VI chip into a quarter-brick intermediate bus application and achieve superior performance in terms of density, efficiency, fast response and quiet, low-noise operation
This article was originally published on Electronicstalk on 20 Feb 2004 at 8.00am (UK)
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Power designers can still surface mount the original VI chip directly to a board for increased power density (800W/in3) and reduced size and weight.
However, a VIC-in-a-Brick configuration can be used as a second-source replacement for "DC transformer" style bricks in many applications.
The VIC-in-a-Brick configuration is available for certain Vicor VI chip models including the recently introduced 48 to 12V bus convertor modules (BCMs).
The Vicor bus convertor module delivers an isolated 12V at up to 200W for intermediate bus architecture applications such as telecommunications and computers, including servers and data storage equipment.
The BCM may be used to power nonisolated point-of-load (niPOL) convertors or to convert a semiregulated 48V source to a 12V bus.
Up to two BCMs can be accommodated in the VIC-in-a-Brick format for a total of 400W of power conversion in the space of a quarter-brick convertor.
Efficiency of the 12V BCM exceeds 96% over a wide load range.
The VI chip BGA power package provides flexible thermal management through its low junction-to-case and junction-to-BGA thermal resistance.
The VI chips have exceptional speed and transient performance, responding to 100% step load changes in less than 1ms - 20 times faster than the fastest competing brick.
Employing a unique ZCS/ZVS topology with a fixed, multimegahertz switching frequency, VI chips feature very low input and output noise, eliminating costly and bulky filters.
VIC-in-a-Brick modules are priced as low as 13c/W in OEM quantities.
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