MV036F022M055-CB Datasheet, PDF (6/10 Pages) Vicor Corporation – MV036 SERIES

End of Life - Please see First Page
+In / -In DC Voltage Ports
The VTM^® input should be connected to the PRM^® output terminals.
Given that both the PRM and VTM have high switching frequencies, it
is often good practice to use a series inductor to limit high frequency
currents between the PRM output and VTM input capacitors. The input
voltage should not exceed the maximum specified. If the input voltage
exceeds the overvoltage turn-off, the VTM will shutdown. The VTM
does not have internal input reverse polarity protection. Adding a
properly sized diode in series with the positive input or a fused reverse-
shunt diode will provide reverse polarity protection.
TM – For Factory Use Only
VC – VTM Control
The VC port is multiplexed. It receives the initial VCC voltage from an
upstream PRM, synchronizing the output rise of the VTM with the
output rise of the PRM. Additionally, the VC port provides feedback to
the PRM to compensate for the VTM output resistance. In typical
applications using VTMs powered from PRMs, the PRM’s VC port
should be connected to the VTM VC port.
The VC port is not intended to be used to supply V_CC voltage to the
VTM for extended periods of time. If VC is being supplied from a source
other than the PRM, the voltage should be removed after 20 ms.
PC – Primary Control
The Primary Control (PC) port is a multifunction port for controlling the
VTM as follows:
Disable – If PC is left floating, the VTM output is enabled. To
disable the output, the PC port must be pulled lower than 2.4 V,
referenced to -In. Optocouplers, open collector transistors or relays
can be used to control the PC port. Once disabled, 14 V must be
re-applied to the VC port to restart the VTM.
Primary Auxiliary Supply – The PC port can source up to 2.4 mA
at 5 Vdc.
+Out / -Out DC Voltage Output Ports
The output and output return are through two sets of contact
locations. The respective +Out and –Out groups must be connected in
parallel with as low an interconnect resistance as possible.
To take full advantage of the VTM, the user should note the low output
impedance of the device. The low output impedance provides fast
transient response without the need for bulk POL capacitance. Limited-
life electrolytic capacitors required with conventional converters can be
reduced or even eliminated, saving cost and valuable board real estate.
MV036 SERIES
+Out
-Out
+Out
-Out
43
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
21
A
B
C
+In
D
E
TM
H
J
VC
K
PC
L
M
N
P
-In
R
T
Bottom View
Signal Name
+In
–In
TM
VC
PC
+Out
–Out
Pin Designation
A1-E1, A2-E2
L1-T1, L2-T2
H1, H2
J1, J2
K1, K2
A3-D3, A4-D4,
J3-M3, J4-M4
E3-H3, E4-H4,
N3-T3, N4-T4
Figure 9 — VTM pin configuration
MIL-COTS Chip Transformer
Page 6 of 10
Rev 2.9
01/2014
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