Powering Communications and Technology
EWS SERIES
5 WATT
DESCRIPTION
EWS DC/DC converters offer excellent
regulation and isolation in an industry standard
package. The EWS series is ideal for industrial,
datacom, or telecom applications. The EWS
series feature 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 %
Efficiency vs. Load (12V Input)
90
85
80
75
70
65
60
55
50
EFF. EWS1212
EFF. EWS1215
TECHNICAL SPECIFICATIONS
Input
Voltage Range
5 VDC Nominal
12 VDC Nominal
Reflected Ripple
Reverse Input Current
4.5 - 9 VDC
9 - 18 VDC
20% I
in
Max.
100% I
in
Max.
45
10
20
30
40
50
60
70
80
90
10
LOAD %
General
Output
Setpoint Accuracy
±5%
±1.5% Vout
±2.5% Vout
10%
25% Iout
1% Vout
500
µs
0.02%/°C
150 mV
Continuous
130%
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
Weight (approx.)
200 KHz
500 VDC
109 Ohms
-25 to +85°C
-40 to +85°C
-40 to +125°C
95%
5 g, 10 - 55 Hz
UL, cUL, TUV
1.4 oz.
High Density - Board Mounted Power Division
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin 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
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.
1
Rev. March 15, 2001
EWS SERIES
5 WATT
Powering Communications and Technology
MODELS -
(See the last page of Section for options.)
Selection Chart
Model
EWS0505
EWS0512
EWS1205
EWS1212
EWS1215
Vin
(Volts)
5
5
12
12
12
Vin Range
(Volts)
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
0.85
0.95
0.91
Vout
(Volts)
5
12
5
12
15
Iout Rated
(Amps)
1.00
0.50
1.00
0.50
0.40
Ripple & Noise
Pk-Pk (mV)
150
150
150
150
150
Efficiency
Typ. **
70%
73%
73%
80%
82%
* 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
High Density - Board Mounted Power Division
Thermal Impedance
Natural Convection 15.4 °C/W
100 LFM
12.2 °C/W
200 LFM
9.3 °C/W
300 LFM
7.4 °C/W
400 LFM
6.4 °C/W
Note:
Thermal impedance data is
dependent on many environmental
factors. The exact thermal
performance should be validated
for specific application.
Pin
1
2
3
4
Function
+Vin
-Vin
+Vout
- Vout
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
+1.0, -0.0
(Dimensions as listed unless otherwise
specified.)
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OPTIONS
Powering Communications and Technology
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.
OPTIONS
Negative Logic
SUFFIX
N
APPLICABLE SERIES
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
Standard Pin Length is 0.180"
(4.6mm)
8
9
1H
1V
2H
2V
3H
3V
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)
REMARKS
TTL "Low" Turns Module ON
TTL "High" Turns Module OFF
Lucent Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
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
T
TS
1
2
3
4
Y
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
High Density - Board Mounted Power Division
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 manu-
factured. Specifications are subject to change without notice.
3
Embedded System
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