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PRM48AH480T200A00 Datasheet, PDF (41/44 Pages) Vicor Corporation – PRM™ Regulator | |||
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Input Fuse Recommendations
A fuse should be incorporated at the input to each PRM, in
series with the +IN pin. A 10A or smaller input fuse (Littlefuse®
NANO2® 451/453 series) is required to safety agency
conditions of acceptability. Always ascertain and observe the
safety, regulatory, or other agency specifications that apply to
your specific application.
Thermal Considerations
Vâ¢IChipTM products are multi-chip modules whose temperature
distribution varies greatly for each part number as well as with
the input / output conditions, thermal management and
environmental conditions. Maintaining the top of the
PRM48AH480[x]200A00 case to less than 100ºC will keep all
junctions within the Vâ¢I Chip module below 125ºC for most
applications. The percent of total heat dissipated through the
top surface versus through the J-lead is entirely dependent on
the particular mechanical and thermal environment. The heat
dissipated through the top surface is typically 60%. The heat
dissipated through the J-lead onto the PCB board surface is
typically 40%. Use 100% top surface dissipation when
designing for a conservative cooling solution.
It is not recommended to use a Vâ¢I Chip module for an
extended period of time at full load without proper
heat sinking.
PRM48AH480 X 200A00
- 41 -
Rev. 1.1
11/2012
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