WR-U SERIES
Single and dual output
•
•
•
•
•
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 –25°C to
71°C with no derating required and all models are free-air convection cooled.
[ 2 YEAR WARRANTY ]
SPECIFICATION
OUTPUT SPECIFICATIONS
Voltage accuracy
Voltage adjustability
Remote sense
Line regulation
Load regulation
Voltage balance
Ripple and noise
Transient response
Temperature coefficient
Overvoltage protection
Singles
Singles
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
INPUT SPECIFICATIONS CONTINUED
±1.0%
±10%, max.
Yes
±0.2%, max.
±5.0%, max.
±1.0%, max.
±2.0%
75mV pk-pk
10mV rms, max.
±1.0% error band
500µ rec.
s
±0.02%/°C, max.
Case material
Isolation voltage
See Note 5
Switching frequency
Input/Output
Input/Case
Fixed
Safety
500VDC
250VDC
100kHz
UL1950
Black coated copper with
non-conductive base
UL94V-0
390g (13.77oz)
See Note 6
840,000 hours
Remote ON/OFF
Logic compatibility
E
c
-ON
E
c
-OFF
Shutdown idle current
Input resistance
Control common
GENERAL SPECIFICATIONS
Efficiency
Typical
75% to 86%
CMOS or open collector TTL
+5.5VDC min. or open-circuit
max. 1.8VDC
5mA
0VDC <Ein< 9VDC; 100kΩ
Referenced to input minus
LL-HL, all outputs
FL-NL
FL-0.25%FL
Duals
5Hz to 20MHz
25% step load
change
Approvals and
standards
Single +5V output
Single +12 and+15V
Duals
6.8V ±10%
18.0V ±10%
No
Material flammability
Weight
MTBF
Short circuit protection
INPUT SPECIFICATIONS
Continuous
automatic recovery
ENVIRONMENTAL SPECIFICATIONS
Input voltage range
12VDC
24VDC
48VDC
12VDC
24VDC
48VDC
Single outputs
Dual outputs
9 to 18VDC
18 to 36VDC
36 to 72VDC
30mA
25mA
20mA
Relative humidity
Input filter
See Note 7
Reverse voltage
protection
Pi filter
Low ESR cap
Internal shunt diode
(Use external fuse)
Altitude
Vibration, Pressure
Thermal performance
Operating ambient
-25°C to +71°C
Non-operating amb. -55°C to +105°C
Case, temp. rise
+30°C at FL max.
Derating
None required
Cooling
Free-air convection cooled
Non-condensing
Operating
Non operating
5Hz to 500Hz
5% to 95% RH
10,000 feet max.
40,000 feet max.
2.5G rms (approx.)
No load input current
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.
PAGE 1
DC/DC CONVERTERS
|
30W DC
30 Watt
Wide input DC/DC converters
INPUT
VOLTAGE
(1)
OUTPUT
VOLTAGE
5VDC
12VDC
15VDC
5VDC
12VDC
15VDC
5VDC
12VDC
15VDC
±12VDC
±15VDC
±12VDC
±15VDC
±12VDC
±15VDC
OUTPUT
CURRENT
5.0A
2.5A
2.0A
5.0A
2.5A
2.0A
5.0A
2.5A
2.0A
±1.25A
±1.0A
±1.25A
±1.0A
±1.25A
±1.0A
INPUT
CURRENT
2.8A
3.2A
3.2A
1.35A
1.55A
1.55A
0.68A
0.78A
0.78A
3.05A
3.05A
1.5A
1.5A
0.73A
0.73A
(2)
TYPICAL
EFFICIENCY
75%
78%
78%
77%
80%
80%
77%
80%
80%
82%
82%
84%
84%
86%
86%
REGULATION
LINE
(3)
LOAD
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
(4)
MODEL
NUMBER
WR12S05/5000U
WR12S12/2500U
WR12S15/2000U
WR24S05/5000U
WR24S12/2500U
WR24S15/2000U
WR48S05/5000U
WR48S12/2500U
WR48S15/2000U
WR12D12/1250U
WR12D15/1000U
WR24D12/1250U
WR24D15/1000U
WR48D12/1250U
WR48D15/1000U
9-18VDC
9-18VDC
9-18VDC
18-36VDC
18-36VDC
18-36VDC
36-72VDC
36-72VDC
36-72VDC
9-18VDC
9-18VDC
18-36VDC
18-36VDC
36-72VDC
36-72VDC
Notes
1
2
3
4
5
6
7
8
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
Nominal input 12, 24 and 48VDC.
Maximum at full load.
Measured from high line to low line.
Measured from full load to 0.25% full load.
In many cases, the isolation specification may be upgraded. Consult
factory for details.
MTBF figures are based on actual product performance. Consult factory
for details.
Fixed frequency design provides for easier input filtering and better noise
performance.
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.
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed
by ±10% using either method shown below.
5
5
TRIM
UP
4
4
10KΩ
TRIMPOT
TRIM
DOWN
3
3
0.70
(17.80)
0.300
(7.600)
0.040 Dia.
(1.000)
0.200
(5.100)
0.400
(10.200)
0.800
(20.300)
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
SINGLE OUTPUT
+ Input
– Input
+ Sense/Trim Down
Trim
– Sense/Trim Up
+ Output
– Output
Remote On/Off Control
DUAL OUTPUT
+ Input
– Input
+ Output
Common
– Output
4.56
(115.80)
7 6
5 4 3
No Pin
No Pin
2.50
(63.50)
BOTTOM
VIEW
2
1
8
0.30
(7.60)
0.400
(10.200)
1.50
(38.10)
2.56
(66.00)
0.600
(15.200)
International Safety Standard Approvals
UL1950 File Numbers E136005 and E131987
0.83
(21.10)
0.22 Min.
(5.60)
DS_WRU_19980401.PDF
ALL DIMENSIONS IN INCHES (mm)
http://www.artesyn.com
PAGE 2
Embedded System
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