International Safety Standard Approvals
UL478 File No. E131987 (WR-XC)
GENERAL SPECIFICATIONS
Efficiency
Full load. See table
75%, min.
Isolation voltage
WR/MP, Input/output
500VDC
See Note 4
WR/XC, Input/output
500VDC
WR/XC, output/case
250VDC
Switching frequency
Fixed
100kHz
Approvals and
Safety (WR-XC)
UL478
standards
Case material
XC case
Black coated metal
with non-conductive base
MP case
Non-conductive
black plastic
Material flammability
UL94V-0
Weight
XC case
170g (6.0oz.)
MP case
200g (7.06oz.)
MTBF
See Note 6
840,000 Hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
-25C to +71C
Non-operating amb.
-55C to +105C
Case temp. rise
+30C at FL max.
Derating
None required
Cooling
Free air convection cooled
Relative humidity
Non-condensing
5% to 95% RH
Altitude
Operating
10,000 feet max.
Non operating
40,000 feet max.
Vibration
5Hz to 500Hz
2.5G rms (approx.)
WR-XC and WR-MP SERIES
Single and dual output
[ 2 YEAR WARRANTY ]
2:1 input range
WR-XC UL approved
Efficiency to 86%
Isolated outputs
Six sided shield
Remote on/off control on XC models
100kHz switching frequency
Two package sizes available
The WR series DC/DC converters accept a wide input voltage range of 9-
18VDC, 18-36VDC or 36-72VDC. A 100kHz switching regulator produces
operating efficiencies up to 86% at full load and as high as 80% at light load. In
the case of duals, full power may be taken from either output. All models will
tolerate a short circuit between positive and negative outputs or between either
output and common indefinitely. Load regulation of 1%, line regulation of
0.2%, Pi input filtering and remote on/off control (XC package only) which can
be improvised as an undervoltage shutdown signal, are featured on all models.
Six-sided continuous EMI/RFI shielding is provided in both XC and MP
packages. The operating temperature range is 25C to +71C convection
cooled, with no derating required.
SPECIFICATION
All specifications are typical at nominal input, full load at 25C unless otherwise stated
PAGE 1
OUTPUT SPECIFICATIONS
Voltage accuracy
1.0%
Voltage balance
Dual outputs
2.0%
Voltage adjustability
WR/XC, single output
10% max.
Line regulation
HL-LL
0.2%
Load regulation
FL-NL
5.0%, max.
FL-0.25% FL
1.0%, max.
Ripple and noise
5Hz to 20MHz
75mV pk-pk,
10mV rms max.
Transient response
25% step load
1.0% error band
change 500s
recovery
Temperature coefficient
0.02%/C, max.
Overvoltage protection
5V single output
6.8V 10%
(Zener clamp)
12 and 15V singles
18.0V 10%
Short circuit protection
Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
12VDC
9-18VDC
24VDC 18-36VDC
48VDC 36-72VDC
No load input current
12VDC
30mA
24VDC and 48VDC
20mA
Input filter
Pi type
Remote ON/OFF
Refers to XC package only
Logic compatibility
CMOS or open collector TTL
Ec-ON
+5.5VDC or open-circuit
Ec-OFF
1.8VDC
Shutdown idle current
5mA
Input resistance
0VDC <Ein< 9VDC; 100k
Control common
Referenced to input minus
Data Sheet Artesyn Technologies 2000
The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein.
0.700
(17.8)
1
2
4
3
5
6
7
8
BOTTOM
VIEW
ALL DIMENSIONS IN INCHES (mm)
3.00
(76.2)
2.500
(63.5)
0.400
(10.2)
0.200
(5.1)
0.300
(7.6)
0.800
(20.3)
0.600
(15.2)
2.56
(66.0)
1.50
(38.1)
0.400
(10.2)
0.30
(7.6)
0.22 MIN.
(5.6)
0.83
(21.1)
0.040 DIA.
(1.0)
XC CASE
PIN CONNECTIONS
MP
MP
XC
(5)
XC
PIN
SINGLES
DUALS
SINGLES
DUALS
1
+ Input
+ Input
+ Input
+ Input
2
Input
Input
Input
Input
3
+ Output
+ Output
No Pin
+ Output
4
No Pin
No Pin
Trim
Common
5
N/C
Common
No Pin
Output
6
No Pin
No Pin
+ Output
No Pin
7
Output
Output
Output
No Pin
8
N/A
N/A
Remote On/Off
Remote On/Off
Control
Control
INPUT
OUTPUT
OUTPUT
INPUT
TYPICAL
REGULATION
MODEL
VOLTAGE
VOLTAGE
CURRENT
CURRENT
EFFICIENCY
LINE
LOAD
(1)
NUMBER
9-18VDC
5VDC
3000mA
1700mA
75%
0.2%
1.0%
WR12S05/3000XC
9-18VDC
12VDC
1250mA
1600mA
78%
0.2%
1.0%
WR12S12/1250XC
9-18VDC
12VDC
1250mA
1600mA
78%
0.2%
1.0%
WR12S12/1250MP
18-36VDC
5VDC
3000mA
810mA
77%
0.2%
1.0%
WR24S05/3000XC
18-36VDC
5VDC
3000mA
810mA
77%
0.2%
1.0%
WR24S05/3000MP
18-36VDC
12VDC
1250mA
780mA
80%
0.2%
1.0%
WR24S12/1250XC
36-72VDC
5VDC
3000mA
410mA
77%
0.2%
1.0%
WR48S05/3000XC
36-72VDC
12VDC
1250mA
390mA
80%
0.2%
1.0%
WR48S12/1250XC
9-18VDC
12VDC
625mA
1520mA
82%
0.2%
1.0%
WR12D12/625XC
9-18VDC
15VDC
500mA
1520mA
82%
0.2%
1.0%
WR12D15/500XC
9-18VDC
12VDC
625mA
1520mA
82%
0.2%
1.0%
WR12D12/625MP
18-36VDC
12VDC
625mA
750mA
84%
0.2%
1.0%
WR24D12/625XC
18-36VDC
15VDC
500mA
750mA
84%
0.2%
1.0%
WR24D15/500XC
18-36VDC
12VDC
625mA
750mA
84%
0.2%
1.0%
WR24D12/625MP
18-36VDC
15VDC
500mA
750mA
84%
0.2%
1.0%
WR24D15/500MP
36-72VDC
12VDC
625mA
390mA
86%
0.2%
1.0%
WR48D12/625XC
36-72VDC
15VDC
500mA
390mA
86%
0.2%
1.0%
WR48D15/500MP
Notes
1
Load regulation is measured from full load to 25% full load.
2
Standard specifications are conservative and can be optimised for specific
applications. In particular, converter start-up at lower than specified
temperature, wider input voltage range and output voltage adjustment are
all relatively simple modifications to the standard product. Consult factory
for details.
3
Fixed frequency design provides for easier input filtering and better noise
performance.
4
In many cases, the isolation specification may be upgraded. Consult
factory for details.
5
XC case only (single output models): to trim up connect pin 4 to pin 7
through a 10k
resistor, or pin 4 to pin 6 to trim down.
6
MTBF figures are based on actual product performance. Consult factory
for details.
ALL DIMENSIONS IN INCHES (mm)
MP CASE
1
2
3.5
(88.9)
1.6
(40.6)
2.2
(55.9)
3
4
5
6
7
2.5
(63.5)
0.5
(12.7)
0.6
(15.2)
0.15
(3.8)
0.2
(5.1)
0.88
(22.4)
0.04
(1.0)
1.6
(40.6)
0.5
(12.7)
0.6
(15.2)
INSERT 4-40
THREAD
3.2 (0.125)
DEEP
15 Watt
Wide input DC/DC converters
DC/DC CONVERTERS
|
15W DC
PAGE 2
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