LOW COST, HIGH ISOLATION
Six-sided shielding suppresses electromagnetic radia-
tion which could disturb sensitive analog measure-
ments or interfere with system timing signals. Input
filtering minimizes reflected ripple current. Output
ripple voltage and switching transients are reduced
by filtering the PWR70 outputs.
The PWR70 is tested in compliance with UL544,
VDE750, and CSA C22.2 dielectric withstand volt-
age requirements.
NOTES: All dimensions are in inches (millimeters).
GRID: 0.100 inches (2.54 millimeters)
WEIGHT: 15gm (0.53oz)
Marked with: specific model ordered, date code, job
code.
MATERIAL: Units are encapsulated in a low thermal
resistance molding compound which has excellent
chemical resistance, wide operating temperature
range, and good electrical properties under high
humidity environments. Lead material is brass with a
solder plated surface to allow ease of solderability.
FEATURES
TESTED IN COMPLIANCE WITH UL544
OUTPUT POWER TO 3W
HIGH ISOLATION VOLTAGE: 2000VDC
SIX-SIDED SHIELDING
INPUT AND OUTPUT FILTERING
LOW PROFILE PACKAGE: 0.4" High
DESCRIPTION
The PWR70 is a dual-output DC/DC converter de-
signed for general purpose power conversion applica-
tions where high efficiency is more important than
load regulation.
The PWR70 provides a plus and minus output volt-
age approximately equal to the input voltage magni-
tude. It operates over an input voltage range of
10VDC to 18VDC. Isolation voltage is a minimum of
2000VDC.
PWR70 SERIES
3 WATTS
UNREGULATED
DC/DC CONVERTERS
APPLICATIONS
POWER FOR DATA ACQUISITION, OP
AMPS, ETC.
PROCESS CONTROL
PORTABLE EQUIPMENT
TEST EQUIPMENT
MECHANICAL
Internet: http://www.cdpowerelectronics.com
Power Electronics Division, United States
3400 E Britannia Drive, Tucson, Arizona 85706
Phone: 800.547.2537 Fax: 520.770.9369
Power Electronics Division, Europe
C&D Technologies (Power Electronics) Ltd.
132 Shannon Industrial Estate
,
Shannon, Co. Clare, Ireland
Tel: +353.61.474.133
Fax:+353.61.474.141
ELECTRICAL SPECIFICATIONS
At T
A
= +25C, +V
IN
= 15VDC, and I
OUT
= 15mA unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT
Rated Voltage
15
VDC
Voltage Range
10
18
VDC
Input Current
I
OUT
= 3mA
25
mA
I
OUT
= 33mA
150
mA
Ripple Current
I
OUT
= 33mA
10
mAp-p
ISOLATION
Rated Voltage
2000
VDC
Test Voltage
60s, 60Hz
5000
Vpk
Resistance
10
G
Capacitance
12
pF
Leakage Current
V
ISO
= 240VAC, 60Hz
2
A
OUTPUT
Rated Voltage
15
VDC
Voltage Accuracy
5
%
Rated Current
15
mA
Current Range
0
100
mA
Line Regulation
10VDC V
IN
18VDC
1.08
V/V
Load Regulation
3mA I
OUT
33mA
35
mV/mA
Ripple Voltage
I
OUT
= 3mA
10
mVp-p
I
OUT
= 33mA
80
mVp-p
TEMPERATURE
Specification
25
+85
C
Operating
55
+125
C
Storage
65
+150
C
ABSOLUTE MAXIMUM RATINGS
Input Voltage...................................................................18VDC
Output Current..............................................................150mA
Output Short-Circuit Duration...................................Continuous
ORDERING INFORMATION
PWR 70 /H
Device Family
PWR indicates DC/DC converter
Model Number
Reliability Screening
No designator indicates standard manufacturing processing
Ambient Temperature (C)
V Deviation From Nominal (%)
OUT
2
1
0
1
2
65 35
5
25
55
85
115 145
3mA Load
30mA Load
Output Current (mA)
V Deviation From Nominal (%)
OUT
6
4
2
0
2
4
6
0
10
20
30
40
50
Equal Load
Varying Load
(One output
constant 15mA load,
other output vary current.)
FIGURE 2. Temperature Drift.
FIGURE 1. Load Regulation.
The information provided herein is believed to be reliable; however, C&D Technologies assumes no responsibility for inaccuracies or omissions. C&D Technologies assumes no responsibility for
the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any
of the circuits described herein are implied or granted to any third party. C&D Technologies does not authorize or warrant any C&D Technologies product for use in life support devices/systems
or in aircraft control applications. C&D Technologies, Iso-ThermoFlex and T.E.A.M. Q are trademarks of C&D Technologies Corporation.
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