MSKUW Series
5 Watt DC/DC Converter
Single and Dual Outputs
Rev A
4:1 Ultra Wide Input Voltage Range
FEATURES
DESCRIPTION
● SMT Technology
The MSKUW series of DC/DC converters provide a maximum of 5 watts in a “gull-wing” SMT
package. These converters operate over 4:1 ultra wide input voltage ranges of 9-36 or
18-75VDC. This series also has single output voltages of 3.3, 5, 12, and 15VDC and
dual output voltages of ±5, ±12, and ±15VDC. These converters have a typical full load
efficiency of 83%, remote ON/OFF control, and continuous short circuit protection. The
-40°C~+71°C operating temperature make these converters ideal for data communication
equipment, mobile battery driven equipment, process/machine control equipment,
● High Power Density
● Efficiency up to 83%
● 1500VDC I/O Isolation
● Short Circuit Protection
● Remote ON/OFF Control
● MTBF > 1,000,000 Hours
● 4:1 Ultra Wide Input Voltage Range
● EMI Complies with EN55022 Class A
telecommunication equipment, computer peripheral systems, distributed power systems, mixed analog/digital
subsystems, and industrial robot systems. The EN55022 Class A conducted noise compliance minimizes
● Operating Temperature: -40°C to +71°C design time, cost, and eliminates the need for external filter components.
SPECIFICATIONS: MSKUW Series
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
INPUT (Vin)
TEST CONDITIONS
Min
Nom
Max
Unit
24V nominal input models
48V nominal input models
24V nominal input models
48V nominal input models
24V nominal input models
48V nominal input models
24V nominal input models
48V nominal input models
9
18
7
14
6
13
-0.7
-0.7
24
48
8
16
7
36
75
9
18
8
17
50
100
1
Input Voltage Range
VDC
VDC
VDC
Start Voltage
Under Voltage Shutdown
Input Surge Voltage (1000ms)
15
VDC
A
Reverse Polarity Input Current
Input Filter
Reflected Ripple Current
Short Circuit Input Power
OUTPUT (Vo)
Pi Filter
See Rating Chart
1000 3000
mW
Output Voltage
See Rating Chart
Output Voltage Accuracy
Output Voltage Balance
Load Regulation
Line Regulation
Output Power
±0.5
±0.5
±0.3
±0.2
±2.0
±3.0
±1.0
±1.0
5
%
%
Dual Output, Balanced Loads
Io = 10% to 100%
Vin = min. to max.
%
W
Output Current
See Rating Chart
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Response Deviation
Transient Recovery Time
REMOTE ON/OFF CONTROL
Supply On
50
85
100
15
±6
500
mVpk-pk
mVpk-pk
mVrms
%
Over Line, Over Load, and Over Temperature
25% Load Step Change
25% Load Step Change
±2
250
μs
2.5 to 5.5VDC or open circuit
Supply Off
-0.7
115
0.8
10
-600
-700
VDC
mA
μA
Device Standby Input Current
Control Input Current (ON)
Control Input Current (OFF)
Control Common
PROTECTION
Short Circuit Protection
Over Power Protection
Vin = min to max
Vin = min to max
μA
Referenced to negative input
continuous
%
24V nominal input models
48V nominal input models
1500mA slow-blow type
750mA slow-blow type
Input Fuse Recommendation
GENERAL
Efficiency
See Rating Chart
340
Switching Frequency
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Internal Power Dissipation
Max. Capacitive Load
ENVIRONMENTAL
Operating Temperature (Ambient)
Operating Temperature (Case)
Storage Temperature
Lead Temperature
Humidity
KHz
VDC
VDC
MΩ
pF
mW
60 seconds
Flash Test for 1 second
500VDC
1500
1650
1000
100KHz, 1V
650
750
2500
See Rating Chart
-40
-40
-40
+71
+90
+125
260
95
°C
°C
°C
°C
%
1.5mm from case for 10 seconds
Cooling
Free air convection
Temperature Coefficient
MTBF
±0.01
±0.02
%/°C
Khours
MIL-HDBK-217F @ 25°C, Ground Benign
1000
Conducted EMI
EN55022 Class A
PHYSICAL
Weight
14 grams
Dimensions (L x W x H)
Case Material
Flammability
1.31x0.81x0.40 in (33.4x20.6x10.2 mm)
Non-conductive black plastic
UL94V-0
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
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