V300B28M250B Vicor Corporation, V300B28M250B Datasheet - Page 6

• Manufacturer Part Number: V300B28M250B
• Manufacturer: Vicor Corporation

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Figure 9—DC coupled single-wire interface.
Figure 11—N+1 module array output connections.
PIN STYLES *
* Pin style designator follows the “B” after the output power and precedes the baseplate designator.
CONTROL FUNCTIONS - PR PIN
Parallel Operation
The PR pin supports paralleling for increased power with N+1
(N+M) redundancy and phased array capability. Modules of
the same input voltage, output voltage, and power level will
current share if all PR pins are suitably interfaced.
Compatible interface architectures include the following:
DC coupled single-wire interface. All PR pins are directly
connected to one another. This interface supports current
Module
Module
Module
Ex. V48B24C250BN — Long ModuMate Pins
N+1
Designator
1
2
(None)
N
L
S
+In
PC
PR
+In
+In
–In
PC
PR
–In
PC
PR
–In
Ground plane
+Out
–Out
+Out
–Out
+Out
–Out
SC
SC
SC
+S
+S
+S
–S
–S
–S
+S
–S
+S
–S
Description
Short solder
Long solder
Short ModuMate
Long ModuMate
+In
PC
PR
–In
+In
PC
PR
–In
Load
Set your site on VICOR at www.vicorpower.com
+S
–S
Module 2
(up to 12)
Module
1
• The +Out and –Out power buses
• The +Sense pins should be tied
• At the discretion of the power
• OR’ing diodes may be inserted in
+Out
–Out
+Out
–Out
should be designed to minimize
and balance parasitic impedance
from each module output to the
load.
to the same point on the +Out
power bus; the –Sense pins
should be tied to the same point
on the –Out power bus.
system designer, a subset of all
modules within an array may be
configured as slaves by shorting
SC to –S.
series with the +Out pins of each
module to provide
module output fault tolerance.
SC
SC
+S
–S
+S
–S
Notes
Requires in-board, mounting
On-board mounting for 0.065" boards
SurfMate or in-board socket mounting
On-board socket mounting
V300B28C250B DC-DC Converter
Figure 10—AC coupled single-wire interface.
Figure 12—OR’ing diodes connections.
sharing but is not fault tolerant. Minus In pins must be tied to
the same electric potential. See Figure 9.
AC coupled single-wire interface. All PR pins are connected to
a single communication bus through 0.001µF (500V)
capacitors. This interface supports current sharing and is fault
tolerant except for the communication bus. See Figure 10.
+In
PC
PR
–In
Ground plane
0.001µF
0.001µF
+Out
–Out
SC
–S
+S
+In
PC
PR
–In
+In
PC
PR
–In
Module 2
(up to 12)
Module
1
other modules
+Sense from
in the array
+Out
–Out
+Out
–Out
SC
SC
+S
–S
+S
–S
Rev. 3
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