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VKA100
100 Watt Adjustable Output DC/DC Converter
MECHANICAL
NOTES:
All dimensions are in inches (millimeters).
0.530 MAX
[13.46]
PIN PLACEMENT TOLERANCE: ± 0.005”
MECHANICAL TOLERANCE: ± 0.015”
Marked with: speci?c modeL ordered, date code, job
0.20 [5.1]
.040 [1.02] DIA.
7 PLACES
.081 [2.06] DIA.
2 PLACES
code.
MATERIAL: Units are encapsulated in a low thermal
resistance molding compound which has excellent chemical
resistance and electrical properties in high humidity
environments and over a wide operating temperature
0.20 [5.1]
0.50 [12.7]
0.40 [10.16]
.400 [10.16]
range. The encapsulant and outer shell of the unit have
UL94V-0 ratings. Lead material is solder plated to allow
ease of solderability.
2.000
[50.80]
1.000
0.700
[17.78]
[25.40]
1.000
2.40
[61.0]
[25.40]
MAX
1.400
[35.56]
1.400
[35.56]
MOUNTING INSERTS M3 X 0.5 THRU, 4 PLACES
0.19 [4.8]
1.900
[48.26]
2.28
[57.91]
MAX
MAX. TORQUE, 8 IN/LBS
OUTPUT ADJUST VOLTAGE
This feature allows the user to accurately adjust the module’s
output voltage set point to a speci?ed level. This is achieved
by connecting a resistor or potentiometer from the TRIM
terminal to either the +Vout terminal (for increased Vout) or
the -Vout terminal (for decreased Vout). The formulae below
describe the trim resistor value to obtain a Vout change of
Δ %. V O is output voltage prior to adjustment (3.3V, 5V, 12V,
15V, or 24V).
OVP NOTE
Special attention should be given to the peak voltage
deviation during a dynamic load step when trimming the
output above the original set point to avoid tripping the
overvoltage protection circuit. Should an OVP condition
occur, the converter will go into a latch condition and
must be externally reset before it will return to normal
operation.
Radj - up =
(
Vo(100 + Δ %)
1.225 Δ %
_
(100 + 2 Δ %)
Δ %
) k Ω
Radj - down =
( 100 Δ % - 2 ) k Ω
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mans?eld, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
www.murata-ps.com/locations
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speci?cations are subject to change without
notice. ? 2011 Murata Power Solutions, Inc.
email: sales@murata-ps.com
04 May 2011
VKA100C.BO5 Page 4 of 4
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