www.murata-ps.com
DMS Accessories
5 Volt, Isolated and Non-Isolated DC/DC Converters
for DMS Series Meters
Isolated:
These miniature, 5V-output dc/dc converters are ideal for applications requir-
ing isolation between the input signal being measured and the panel meter’s
+5V power source. They can eliminate common mode voltages up to 750V. A
popular application requiring isolation is high-side, current-shunt, dc amme-
ters (see DMS Ap Note 6 for information on dc ammeters). Any 5Vpowered, 3½
digit, DMS Series meter whose supply current does not exceed 225mA may
be powered from these converters. Low-noise operation can be obtained in
most 4½ digit meter applications by simply adding filter components to the
converter’s output pins.
0.77 ±0.01
(19.56 ±0.25)
0.24 ±0.01
(6.10 ±0.25)
Lead Dimensions:
0.020 (0.51) x 0.010 (0.25) nominal
All dimensions are in inches (mm).
Electrical Specifications (Isolated)
Murata
Part No./Marking
39-0276600/HPR100
39-0276715/HPR106
39-0276610/HPR118
Input Range
39-0276600
39-0276715
39-0276610
Output
Rated Current
Voltage Setpoint
Ripple and Noise
Rated load, nom. VIN
BW=dc to 10MHz
BW=10Hz to 2MHz
Isolation
Rated Voltage
750
60Hz, 10 seconds
Viso=240Vac, 60Hz
750
—
—
—
2
—
—
8.5
Vdc
Vpk
μArms
—
+4.75
—
—
150
+5.0
45
30
—
+5.5
—
—
mA
Vdc
mVp-p
mVrms
Nominal
Input Voltage
+5Vdc
+12Vdc
+24Vdc
Conditions
Min.
+4.5
+10.8
+21.6
Input Current
Min. Load
20mA
10mA
8mA
Typ.
+5
+12
+24
Max. Load
216mA
90mA
44mA
Max.
+5.5
+13.2
+26.4
Units
Vdc
Vdc
Vdc
0.40 ±0.01
(10.16 ±0.25)
Pin Connections
1
2
4
6
0.10
(2.54)
0.20
(5.08)
0.18 ±0.015
(4.57 ±0.38)
0.14 (3.56)
minimum
1
2
4
6
+V
IN
–V
IN
–V
OUT
+V
OUT
0.20
(5.08)
Non-Isolated:
The LM7805CT (Murata part number 39-0304000) is a highly reliable, three-
terminal IC regulator that provides a non-isolated +5V output from input volt-
ages between +7.5 and +28Vdc. However, when it is used to power Murata
DMS Series panel meters, the allowable operating input voltage applied to
the LM7805CT should not exceed the ranges specified in the table below.
The LM7805CT can be used with the DMS-EB, DMS-EB2 and DMS-EB-DC/
DC application boards; each board is pre-wired to accept the regulator. Refer
to each board’s data sheet for more information. Please consult Murata’s
Application Engineers if you have any questions regarding the use of dc/dc
converters with any DMS Series meter.
∅
(3.835 ±0.05)
0.151 ±0.002
0.40 ±0.02
(10.16 ±0.5)
0.18 ±0.005
(4.57 ±0.13)
0.05 ±0.002
(1.27 ±0.05)
0.25 ±0.01
(6.35 ±0.25)
GND
Input
Test Voltage
Leakage Current
Temperature
Operating
Storage
–25
–40
—
—
+85
+110
°C
°C
Absolute Maximum Ratings
Internal Power Dissipation
Output Short-Circuit Duration
Lead Temperature (soldering, 10 seconds max.)
450mW
1 second
+300°C
Electrical Specifications (Non-Isolated)
Input Range
Input Voltage
Typical Circuit
Output
LM7805
C1
C2
GND
0.1uF
+5Vdc
Min.
+7.5
Typ.
—
Max.
+28
Units
Vdc
Output @+25°C
Output Voltage
Output Current
Maximum Input
①
DMS-20PC-X-XS
DMS-20PC-X-XL
+7.5
+7.5
+7.5
+7.5
+7.5
—
—
—
—
—
+12.6
+24.0
+12.6
+18.0
+18.0
Vdc
Vdc
Vdc
Vdc
Vdc
+4.75
—
+5.0
—
+5.5
1000
Vdc
mA
+
0.11 ±0.01
(2.79 ±0.25)
7805
0.34 ±0.01
(8.64 ±0.25)
0.1uF
0.54 ±0.015
(13.72 ±0.4)
Input
GND
0.1 ±0.01
(2.54 ±0.25)
Lead Dimensions:
Output
Notes: 1. Metal tab is connected to
ground (center) pin.
2. C1 and C2 should be mounted
close to the LM7805.
DMS-30PC-X-XS
DMS-30PC-X-XL
DMS-30LCD-X-5(B)
Temperature
Operating
0.032 (0.813) x 0.019 (0.483) nominal
All dimensions are in inches (mm).
–25
–40
—
—
+85
+110
°C
°C
Storage
For full details go to
www.murata-ps.com/rohs
①
When used with the following DMS Series panel meters up to +60°C max.
www.murata-ps.com/support
MPM_DMS Accessories DC/DC.C01
Page 1 of 2
DMS Accessories
5 Volt, Isolated and Non-Isolated DC/DC Converters
for DMS Series Meters
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to:
http://www.murata-ps.com/requirements/
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. Specifications are subject to change without
notice.
© 2015 Murata Power Solutions, Inc.
www.murata-ps.com/support
MPM_DMS Accessories DC/DC.C01
Page 2 of 2
Microcontroller MCU
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