Corporate: www.cdtechno.com
Product: www.cdpowerelectronics.com
WPN20R
20 Watt Regulated DC/DC Converter
Operating Temperature Range:
-40°C to +100°C
Industry Standard Pinout
Input and Output Filtering
Low Profile Shell
Single and Dual Outputs
High Efficiency
Remote On/Off Function
Output Trim Function
Zero Load Operation
EN 60950, UL1950, C-UL,
VDE Agency Approvals
The WPN20R series is a family of
high performance DC/DC converters
available in three input voltage ranges
of 9-18V, 18-36V and 33-75V. The unit
is housed in a space saving aluminum
shell and combines low cost with high
performance across all line and load
conditions. The 300KHz switching
frequency and forward converter
topology provide excellent performance
across all line and load conditions in a
space saving package. Other features
include: full regulation down to zero
load, under voltage lock-out, internal
temperature shutdown, soft start, remote
on/off and over current protection.
An output trim feature is provided,
allowing the user to compensate for long
line lengths. The WPN20R Series is
assembled using a fully automated
process incorporating 100% surface
mounted components for increased
reliability.
Applications include: Telecom-
munications, Battery Powered Sytems,
Process Control Equipment,
Transportation Equipment and
Distributed Power Systems.
PRODUCT SELECTION CHART
Specifications are at T
A
= +25°C nominal input voltage, rated output current unless otherwise specified.
NOMINAL
INPUT
VOLTAGE (VDC)
12
12
12
12
12
12
12
24
24
24
24
24
24
24
48
48
48
48
48
48
48
RATED
OUTPUT
VOLTAGE (VDC)
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
OUTPUT CURRENT (A)
MIN
NOM
LOAD
LOAD
0.0
6.00
0.0
4.00
0.0
1.66
0.0
1.33
0.0
±2.00
0.0
±0.83
0.0
±0.67
0.0
6.00
0.0
4.00
0.0
1.66
0.0
1.33
0.0
±2.00
0.0
±0.83
0.0
±0.67
0.0
6.00
0.0
4.00
0.0
1.66
0.0
1.33
0.0
±2.00
0.0
±0.83
0.0
±0.67
INPUT
CURRENT
NOM LOAD
2.00
2.00
2.00
2.00
2.00
2.00
2.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
0.50
0.50
0.50
0.50
EFFICIENCY
(%)
82
84
86
86
84
86
86
83
84
87
87
85
87
87
83
85
88
86
85
87
87
MODEL*
WPN20R12S03
WPN20R12S05
WPN20R12S12
WPN20R12S15
WPN20R12D05
WPN20R12D12
WPN20R12D15
WPN20R24S03
WPN20R24S05
WPN20R24S12
WPN20R24S15
WPN20R24D05
WPN20R24D12
WPN20R24D15
WPN20R48S03
WPN20R48S05
WPN20R48S12
WPN20R48S15
WPN20R48D05
WPN20R48D12
WPN20R48D15
NOTE:
Other input to output voltages may be available. Please consult factory.
WPN20R
REV A
3/2000
Page 1
CANDD [ C&D TECHNOLOGIES ]
