OUTPUT SPECIFICATIONS
Voltage accuracy
1.0%
Voltage adjustability
Singles
10%, max.
Remote sense
Singles
Yes
Line regulation
LL-HL, all outputs
0.2%, max.
Load regulation
FL-NL
5.0%, max.
FL-0.25%FL
1.0%, max.
Voltage balance
Duals
2.0%
Ripple and noise
5Hz to 20MHz
75mV pk-pk
10mV rms, max.
Transient response
25% step load
1.0% error band
change
500
s rec.
Temperature coefficient
0.02%/C, max.
Overvoltage protection Single +5V output
6.8V 10%
Single +12 and+15V
18.0V 10%
Duals
No
Short circuit protection
Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
12VDC
9 to 18VDC
24VDC
18 to 36VDC
48VDC
36 to 72VDC
No load input current
12VDC
30mA
24VDC
25mA
48VDC
20mA
Input filter
Single outputs
Pi filter
See Note 7
Dual outputs
Low ESR cap
Reverse voltage
Internal shunt diode
protection
(Use external fuse)
INPUT SPECIFICATIONS CONTINUED
Remote ON/OFF
Logic compatibility
CMOS or open collector TTL
E
c
-ON
+5.5VDC min. or open-circuit
E
c
-OFF
max. 1.8VDC
Shutdown idle current
5mA
Input resistance
0VDC <Ein< 9VDC; 100k
Control common
Referenced to input minus
GENERAL SPECIFICATIONS
Efficiency
Typical
75% to 86%
Isolation voltage
Input/Output
500VDC
See Note 5
Input/Case
250VDC
Switching frequency
Fixed
100kHz
Approvals and
Safety
UL1950
standards
Case material
Black coated copper with
non-conductive base
Material flammability
UL94V-0
Weight
390g (13.77oz)
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, Pressure
5Hz to 500Hz
2.5G rms (approx.)
WR-U SERIES
Single and dual output
[ 2 YEAR WARRANTY ]
30 Watts output power
UL approved (48V input models)
2:1 input range
Efficiency to 86%
Isolated outputs
The WR-U series DC/DC converters accept a wide input voltage range of 9 to
18VDC, 18 to 36VDC, and 36 to 72VDC. A 100kHz switching regulator produces
operating efficiencies as high as 86% with output loads as light as 25% of full
load. These 30 Watt models provide for remote sensing, input/output isolation of
500VDC minimum, and short circuit protection. The WRU Series incorporates
six sided continuous EMI/RFI shielding. The "U" package measures 2.56 x 4.56
x 0.83 inches and is PCB mountable. Other pertinent specifications include:
overvoltage protection on all outputs, operating temperature range of 25C to
71C with no derating required and all models are free-air convection cooled.
SPECIFICATION
All specifications are typical at nominal input, full load at 25C unless otherwise stated
PAGE 1
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.
PIN CONNECTIONS
PIN NUMBER
SINGLE OUTPUT
DUAL OUTPUT
1
+ Input
+ Input
2
Input
Input
3
+ Sense/Trim Down
+ Output
4
Trim
Common
5
Sense/Trim Up
Output
6
+ Output
No Pin
7
Output
No Pin
8
Remote On/Off Control
INPUT
OUTPUT
OUTPUT
INPUT
TYPICAL
REGULATION
MODEL
VOLTAGE
(1)
VOLTAGE
CURRENT
CURRENT
(2)
EFFICIENCY
LINE
(3)
LOAD
(4)
NUMBER
9-18VDC
5VDC
5.0A
2.8A
75%
0.2%
1.0%
WR12S05/5000U
9-18VDC
12VDC
2.5A
3.2A
78%
0.2%
1.0%
WR12S12/2500U
9-18VDC
15VDC
2.0A
3.2A
78%
0.2%
1.0%
WR12S15/2000U
18-36VDC
5VDC
5.0A
1.35A
77%
0.2%
1.0%
WR24S05/5000U
18-36VDC
12VDC
2.5A
1.55A
80%
0.2%
1.0%
WR24S12/2500U
18-36VDC
15VDC
2.0A
1.55A
80%
0.2%
1.0%
WR24S15/2000U
36-72VDC
5VDC
5.0A
0.68A
77%
0.2%
1.0%
WR48S05/5000U
36-72VDC
12VDC
2.5A
0.78A
80%
0.2%
1.0%
WR48S12/2500U
36-72VDC
15VDC
2.0A
0.78A
80%
0.2%
1.0%
WR48S15/2000U
9-18VDC
12VDC
1.25A
3.05A
82%
0.2%
1.0%
WR12D12/1250U
9-18VDC
15VDC
1.0A
3.05A
82%
0.2%
1.0%
WR12D15/1000U
18-36VDC
12VDC
1.25A
1.5A
84%
0.2%
1.0%
WR24D12/1250U
18-36VDC
15VDC
1.0A
1.5A
84%
0.2%
1.0%
WR24D15/1000U
36-72VDC
12VDC
1.25A
0.73A
86%
0.2%
1.0%
WR48D12/1250U
36-72VDC
15VDC
1.0A
0.73A
86%
0.2%
1.0%
WR48D15/1000U
Notes
1
Nominal input 12, 24 and 48VDC.
2
Maximum at full load.
3
Measured from high line to low line.
4
Measured from full load to 0.25% full load.
5
In many cases, the isolation specification may be upgraded. Consult
factory for details.
6
MTBF figures are based on actual product performance. Consult factory
for details.
7
Fixed frequency design provides for easier input filtering and better noise
performance.
8
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.
ALL DIMENSIONS IN INCHES (mm)
2
1
8
7 6
5 4 3
BOTTOM
VIEW
4.56
(115.80)
0.83
(21.10)
0.22 Min.
(5.60)
0.400
(10.200)
0.30
(7.60)
2.56
(66.00)
1.50
(38.10)
0.600
(15.200)
2.50
(63.50)
0.400
(10.200)
0.200
(5.100)
0.300
(7.600)
0.70
(17.80)
0.800
(20.300)
0.040 Dia.
(1.000)
10K
TRIMPOT
TRIM
UP
TRIM
DOWN
5
4
3
5
4
3
International Safety Standard Approvals
UL1950 File Numbers E136005 and E131987
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed
by 10% using either method shown below.
30 Watt
Wide input DC/DC converters
DC/DC CONVERTERS
|
30W DC
PAGE 2
http://www.artesyn.com
DS_WRU_19980401.PDF
PDF 
ZIP