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EWS SERIES - 5 WATT
DESCRIPTION
EWS DC/DC converters offer excellent regulation and
isolation in an industry standard package. Available in
5V or 12V input versions, the EWS is ideal for
industrial, datacom, or telecom applications. The
EWS features short circuit protection, six-sided
shielding, and 500 VDC isolation. Please see the
EWD series for dual output applications.
FEATURES
•
•
•
•
Industry Standard Package
Industry Standard Pinout
85°C Case Operation
Short Circuit Protection
• 5V and 12V Inputs
• Input Pi Filter and
6-Sided Shielding
• Regulated Outputs
• 500V Isolation
Efficiency vs. Load (12V Input)
90
85
80
75
EFFICIENCY %
70
65
60
55
EWS505
50
EWS512
45
40
35
10
20
30
40
50
60
70
80
90
100
LOAD %
TECHNICAL SPECIFICATIONS
Input
Voltage Range
5 VDC Nominal
12 VDC Nominal
Reflected Ripple
Reverse Input Current
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
Temperature Coefficient
Ripple And Noise, 20 MHz BW
Short Circuit Protection
1
Current Limit
±5%
±1.5% V
out
±2.5% V
out
10%
25% I
out
4.5 - 9 VDC
9 - 18 VDC
20% I
in
Max.
100% I
in
Max.
Switching Frequency
Isolation
Input - Output
Isolation Resistance - Input to Output
Standard Case Operating Range
Industrial Range (add -I to p/n)
Storage range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
Safety
General
200 kHz
500 VDC
10
9
Ohms
-25 to +85°C
-40 to +85°C
-40 to +125°C
95%
5 g, 10 - 55 Hz
UL, cUL, TUV
1% V
out
500
µs
0.02%/°C
150 mV
Continuous
130%
Notes
1
Converter will auto-restart once fault has been removed.
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.
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
C-6
EWS SERIES - 5 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
5
5
5
12
12
12
Vin Range
(Volts)
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
Iin Max.*
(Amps)
1.80
2.10
1.95
0.85
0.95
0.91
Vout
(Volts)
5
12
15
5
12
15
Iout Rated
(Amps)
1.00
0.50
0.40
1.00
0.50
0.40
Ripple & Noise
Pk-Pk (mV)
150
150
150
150
150
150
Efficiency
Typ. **
70%
73%
76%
73%
80%
82%
Model
EWS505
EWS512
EWS515
EWS1205
EWS1212
EWS1215
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
MECHANICAL DRAWING
0.300"
(7.6mm)
-0.10"
(-2.5mm)
0
0.800"
(20.3mm)
0.015"
(3.9mm)
0.500"
(12.7mm)
-0.60"(-15.2mm)
0
3
4
2.00"
(50.8mm)
DIA 0.040"
(1.0mm)
0.800"(20.3mm)
1
2
1.00"
(25.4mm)
0.40"
(10.2mm)
BOTTOM VIEW
Thermal Impedance
Natural Convection
100 LFM
200 LFM
300 LFM
400 LFM
15.4
12.2
9.3
7.4
6.4
°C/W
°C/W
°C/W
°C/W
°C/W
Pin
1
2
3
4
Function
+V
in
-V
in
+V
out
- V
out
Tolerances
Inches:
.XX ± 0.040
.XXX ± 0.010
Pin:
± 0.002
Case:
+0.04, -0.00
(Millimeters)
.X ± 1.0
.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, -0.0
( Dimensions as listed unless otherwise
specified.)
C-7
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