MWS SERIES - 20 WATT
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.
FEATURES
•
•
•
•
20W Standard Package • Enable and Trim Pins
100°C Case Operation • Wide Range Input
Voltage
3.3V Output Available
• 1500V Isolation
Integrated Heatsink
• Short Circuit Protection
Efficiency vs. Load (24V Input)
TECHNICAL SPECIFICATIONS
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Undervoltage Lockout
UVLO Hysteresis
Reflected Ripple
Input Reverse Voltage Protection
Input
18 - 36 VDC
33 - 75 VDC
<33V or <18V
1V Nominal
50 mA
Shunt Diode
Output
85
80
EFFICIENCY %
75
MWS020YGY
70
EFF. (18v)
EFF. (24v)
65
EFF. (36v)
60
Setpoint Accuracy
Line regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
out
Rated
General
Turn-On Time, Max.
Remote Shutdown
Switching Frequency
Isolation
Input - Output
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF† (Bellcore TR-NWT-000332)
Safety
Weight (approx.)
REV. 09/01
±1.0%
0.2% V
out
0.5% V
out
5%
25% I
out
4% V
out
500
µs
±10%
Shutdown / Hiccup
110 - 140%
90
85
EFFICIENCY %
10
20
30
40
50
60
70
80
90
100
LOAD %
Efficiency vs. Load (48V Input)
80
75
70
65
60
55
50
10
20
30
40
50
60
70
80
90
100
LOAD %
MWS020ZGY
EFF. (33v)
EFF. (48v)
EFF. (75v)
175 ms Max.
Positive Logic
450 kHz
1500 VDC
0.015%/°C
-40 To +100°C
-40 To +105°C
95%
5 g, 10 - 55 Hz
1.9 x 106 hrs
UL, cUL, TUV
1.2 oz
Notes
† MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless
otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible
with commercial wave-soldering equipment.
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OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that you prefer and add
them to the model number. Example ordering options are located below the options table.
Negative Logic
OPTION
SUFFIX
N
T
Lucent-Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
PIN LENGTH AND HEATSINK
OPTIONS
TS
1
2
3
4
Y
8
9
1H
1V
2H
2V
3H
3V
HAS, HBD, HBS, HES, HLS, LES,
QBS, QES, QLS, TES, TQD
HAS, HBD, HBS, HES, HLS, QBS,
QES, QLS
XWS, XWD, XWT
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
SMS
Encapsulated EWS, IWS, OWS
All Units (Except SMS)
All Units (Except SMS)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM, TLD, and TKD Packages)
APPLICABLE SERIES
TTL Low Turns Module ON
TTL High Turns Module OFF
REMARKS
0.110 (2.8mm) Pin Length
0.150 (3.8mm) Pin Length
0.24 (6.1mm) Horizontal Heatsink
0.24 (6.1mm) Vertical Heatsink
0.45 (11.4mm) Horizontal
Heatsink
0.45 (11.4mm) Vertical Heatsink
0.95 (24.1mm) Horizontal
Heatsink
0.95 (24.1mm) Vertical Heatsink
Standard Pin Length is 0.180
(4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:
HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent-compatible trim, and 0.95 vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110 pin length.
NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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