MWS DC-DC Series Data Sheet
Single-Output, 20 Watts
Features
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20W standard package
100°C case operation
3.3V output available
Integrated heat sink
Enable and trim pins
Wide range input voltage
1500V isolation
Short circuit protection
Description
MWS DC-DC converters provide up to 20 watts of output power in an industry-standard package and footprint. The
MWS is available in either 24V or 48V input versions. With a maximum case temperature of 100°C, the MWS is
well suited for the most demanding telecom, networking, and industrial applications. The MWS features 1500 VDC
isolation, short circuit, and overtemperature protection.
Efficiency vs. Load (24V Input)
Technical Specifications
85
Input
80
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Undervoltage Lockout
UVLO Hysteresis
Reflected Ripple
Input Reverse Voltage Protection
18 - 36 VDC
33 - 75 VDC
<33V or <18V
1V Nominal
50 mA
Shunt Diode
75
70
65
60
MWS020YGY
EFF. (18v)
EFF. (24v)
EFF. (36v)
Output
Rated
Setpoint Accuracy
1.0%
10
20
30
40
50
60
70
80
90
100
LOAD %
Line regulation V Min. - V Max., I
0.2% V
in
in
out
out
Load Regulation I
Min. - I
Max., V Nom.
0.5% V
out
out
in
out
Minimum Output Current
5 %
Efficiency vs. Load (48V Input)
Dynamic Regulation, Loadstep
25% I
out
Pk Deviation
4% V
out
90
85
80
75
70
65
60
55
50
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
500 µs
10%
Shutdown / Hiccup
Rated
110 - 140%
out
MWS020ZGY
EFF. (33v)
EFF. (48v)
EFF. (75v)
General
Turn-On Time, Max.
Remote Shutdown
Switching Frequency
Isolation
175 ms Max.
Positive Logic
450 kHz
10
20
30
40
50
60
70
80
90
100
LOAD %
Input - Output
Temperature Coefficient
Case Temperature
1500 VDC
0.015%/°C
Operating Range
Storage Range
-40 To +100°C
-40 To +105°C
95%
Notes
MTBF predictions may vary slightly from model to model.
†
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
5 g, 10 - 55 Hz
Specifications typically at 25°C, normal line, and full load, unless
otherwise stated.
6
†
MTBF (Bellcore TR-NWT-000332)
Safety
1.9 x 10 hrs
UL, cUL, TUV
1.2 oz
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible
with commercial wave-soldering equipment.
Weight (approx.)
REV. DEC 01, 2003
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