MWS SERIES - 20 WATT
DESCRIPTION
FEATURES
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.
• 20W Standard Package • Enable and Trim Pins
• 100°C Case Operation • Wide Range Input
• 3.3V Output Available
• Integrated Heatsink
Voltage
• 1500V Isolation
• Short Circuit Protection
Efficiency vs. Load (24V Input)
85
80
75
70
65
60
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Undervoltage Lockout
UVLO Hysteresis
Reflected Ripple
18 - 36 VDC
33 - 75 VDC
<33V or <18V
1V Nominal
50 mA
Shunt Diode
MWS020YGY
EFF. (18v)
EFF. (24v)
EFF. (36v)
Input Reverse Voltage Protection
Output
Setpoint Accuracy
1.0%
10
20
30
40
50
60
70
80
90
100
LOAD %
Line regulation V Min. - V Max., I
Rated
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. 09/01
1