EB-DCDC Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – DC/DC Converter and Isolation Board for DMS-30PC/LCD Meters

DMS-EB-DC/DC
DC/DC Converter and Isolation Board for
DMS-30PC/LCD Meters
FEATURES
N _{Provide isolated +5V power for DMS-30 Series meters}
N _{750V minimum isolation}
N Ideal for high-side dc ammeters shunts
N _{Provisions for +12V operation}
N _{Includes all the features of the standard DMS-EB board}
N _{Use with all DMS-30PC and DMS-30LCD}
(5V models only)
N –25 to +60°C operating temperature range
Functional Specifications
TA = 25°C, VCC = +5V
Input Voltage
+5V (±5%)
Input Current:
Typical
Maximum
+150mA
+250mA
Regulator Input Voltage Range
(LM7805CT):
DMS-30PC-X-XS
DMS-30PC-X-RL
DMS-30LCD-X-5(B)
+7.5 to +9.5Vdc
+7.5 to +18Vdc
+7.5 to +18Vdc
Output Voltage
+5V (±5%)
Isolation
750V, minimum
Operating Temperature
0 to +60°C
Storage Temperature
– 20 to +75°C
Dimensions:
2.02" (51.31mm)L
0.83" (21.08mm)W
Humidity (Non-condensing)
0 to 95%
Description: The DMS-EB-DC/DC Application Board provides isolated +5V power for
DATEL's DMS-30PC/LCD Series, 3½ Digit, LED/LCD Display, Digital Panel Voltmeters. This
add-on board is ideal for applications requiring isolation (up to 750V) between the input
signal and the meter's +5V supply.
Features: The DMS-EB-DC/DC is an excellent choice for dc ammeter applications.
These ammeters typically have the current shunt located on the positive side of the power
supply — a condition which usually exceeds the meter's common mode voltage limit.
Input-to-output isolation is required if the power source being measured also powers the
DMS-30. DATEL's new Panel Meter Catalog has a detailed application note on dc amme-
ters.
Applications: The DMS-EB-DC/DC incorporates all standard features of the DMS-EB
board; the only exception being the smaller allowable range of power supply voltage when
using the LM7805 3-terminal regulator. Use the DMS-EB-DC/DC with any DMS-30PC meter
or DMS-30LCD meter (5V-powered models only).
+7.5-18V Operation (Optional): Open SG4 and install U2 (LM7805CT) with its metal
tab adjacent to U1. Applications requiring a lower dropout voltage should consider the
LM2931T-5. Exceeding the
allowable regulator input voltage
ranges (see Functional Specifica-
tions) will cause device over-
heating! As is the case when
specifying any electronic power
component, be sure to consult all
applicable manufacturer's data
12
R1
R2
SG10
C1
SG11 SG9 SG8 _SG7
SG6 SG5
R3
R6
SG14
C3
U1
C4 ₁
C4
U2
SG12 _R5
SG4 SG2
J1
R4
1 23 456
SG3 _SG1
sheets.
Ordering Information
DMS-EB-DC/DC
DMS-BZL1
DMS-BZL2
RN-DMS
DC/DC converter board (with mating connector)
Bezel assembly
Bezel assembly with sealing gasket
Resistor accessory kit
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
MPM_DMS-EB-DCDC.B01 Page 1 of 2