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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)
85
80
EFFICIENCY %
75
MWS020YGY
70
EFF. (18v)
EFF. (24v)
TECHNICAL SPECIFICATIONS
65
EFF. (36v)
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Undervoltage Lockout
UVLO Hysteresis
Reflected Ripple
Input Reverse Voltage Protection
Output
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.)
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 10
6
hrs
UL, cUL, TUV
1.2 oz
†
18 - 36 VDC
33 - 75 VDC
<33V or <18V
1V Nominal
50 mA
Shunt Diode
60
10
20
30
40
50
60
70
80
90
100
LOAD %
Efficiency vs. Load (48V Input)
±1.0%
0.2% V
out
0.5% V
out
5%
25% I
out
4% V
out
500
µs
±10%
Shutdown / Hiccup
110 - 140%
EFFICIENCY %
90
85
80
75
70
EFF. (33v)
MWS020ZGY
65
60
55
50
10
20
30
40
50
EFF. (48v)
EFF. (75v)
60
70
80
90
100
LOAD %
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.
C-18
MWS SERIES - 20 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
24
24
48
48
Vin Range
(Volts)
18 - 36
18 - 36
33 - 75
33 - 75
Iin Max.*
(Amps)
1.00
1.34
0.77
0.72
Vout
(Volts)
3.3
15.0
5.0
15.0
Iout Rated
(Amps)
4.0
1.33
4.0
1.33
Ripple & Noise
Pk-Pk (mV)
75
150
75
150
Efficiency
Typ. **
79%
85%
81%
85%
Model
MWS013YEY
MWS020YJY
MWS020ZGY
MWS020ZJY
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
2.00"
MECHANICAL DRAWING
(50.8mm)
5
1.100"(27.9mm)
6
0.600"(15.2mm)
0.400"(10.2mm)
0.200"(5.1mm)
0
0.700"(17.8mm)
1.60"
(40.6mm)
1
2
BOTTOM VIEW
7
0.300"(7.6mm)
3
4
8
-0.100"(-2.5mm)
-.30"(-7.6mm)
1.800"
(45.7mm)
-0.10"
(-2.5mm)
0
DIA 0.040"
(1.0mm)
0.18" MIN.
(4.6mm)
0.46"
(11.7mm)
Thermal Impedance
Natural Convection
100 LFM
200 LFM
300 LFM
400 LFM
11.5
°
C/W
10.2
°
C/W
8.5
°
C/W
6.5
°
C/W
5.4
°
C/W
Pin
1
2
3
4
5
6
7
8
Function
+ V
in
- V
in
No Pin
Shutdown
No Pin
+ V
out
- V
out
Trim
Tolerances
Inches:
.XX ± 0.020
.XXX ± 0.010
Pin:
± 0.002
Case:
+ 0.04, - 0.00
(Millimeters)
.X ± 0.5
.XX ± 0.25
± 0.05
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
+ 1.0, - 0.00
( Dimensions as listed unless otherwise
specified.)
C-19
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.
OPTION
Negative Logic
Lucent Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
SUFFIX
N
T
TS
1
2
3
4
Y
APPLICABLE SERIES
HAS, HBD, HBS, HES, LES, QBS,
QES, TES, TQD
HAS, HBD, HBS, HES, QBS, QES
XWS, XWD, XWT
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
SMS
Encapsulated EWS, IWS, OWS
REMARKS
TTL “Low” Turns Module ON
TTL “High” Turns Module OFF
PIN LENGTH AND HEATSINK
OPTIONS
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
8
9
1H
1V
2H
2V
3H
3V
All Units (Except SMS)
All Units (Except SMS)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
All Units (Except DIP, SIP, and SM
Packages)
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.
C105
Microcontroller MCU
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