Vicor VI Chip VTM Evaluation Board - Manual (Page 13)

The Power Behind Performance
Rev 1.1 06/14 vicorpower.com Applications Engineering: 800 927.9474 Page 13
Paralleling
The paralleling and current sharing capability of the devices can be demonstrated by
stacking multiple evaluation boards and interconnecting the inputs and outputs with
standoffs of sufficient current rating to create a parallel array. When paralleling VTMs,
in standalone VTM® operation, VC pins should be connected together to enable the
synchronized startup.
PRM® boards can also be connected in parallel to create high power PRM-VTM arrays.
PRM input, outputs and interconnect signals need to be connected in parallel using
same size standoffs. Each VTM requires a VC signal from a PRM in order to start and it is
recommended to connect one PRM VC to one VTM VC using the connector J13 on PRM
board and J14 on VTM board when possible. If needed a single PRM VC can be used to
drive up to two VTMs (will require additional off board connections).
Push Pin Heat Sink Installation
Each VTM demonstration board comes with its own heat sink and push pins for
installation. Before testing, it is highly recommended that the heat sink be installed in
the appropriate location for each board. When installing the push pin heat sink, use
caution not to exceed the maximum compression on the device listed in the data sheet.
For most lab environments a fan blowing across the evaluation board is recommended.
Part Ordering Information
The VTM evaluation boards can be ordered from the Vicor website:
www.vicorpower.com. To order the demo boards, substitute VTM with VTD
in VTM part number.
See
http://www.vicorpower.com/cms/home/products/vi-chip/vichip_VTM_current_
multiplier for part number listing.