EWD DC/DC Series Data Sheet
Description
EWD dual-output DC/DC converters offer excellent
regulation and isolation in an industry-standard package.
Available in several input versions, the EWD is perfect for
industrial, datacom, or telecom applications. The EWD
features short-circuit protection, six-sided shielding, and
500 VDC isolation. Please see the EWS series for single-
output applications.
Features
•
•
•
•
•
•
•
•
•
Industry-standard package
Industry-Standard Pinout
85°C case operation
Short-circuit protection
5V and 12V inputs
Input pi filter
6-sided shielding
Regulated outputs
500V isolation
Efficiency vs. Load (5V Input)
90
85
80
EFFICIENCY %
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.
75
70
65
60
55
50
10
20
30
40
50
60
70
80
90
100
LOAD %
EFF. (505)
EFF. (512)
EFF. (515)
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
±1%
±1.0% V
out
±1.0% V
out
10 % I
out
Rated
EFFICIENCY %
Efficiency vs. Load (12V Input)
90
85
80
75
70
65
60
55
50
10
20
30
40
50
60
70
80
90
100
25% I
out
1% V
out
500
m
s
0.02%/°C
1% V
out
nom.
Hiccup
130%
Eff. EWD1205
Eff. EWD1212
LOAD %
General
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
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.
REV. JUL 30, 2003
Page 1 of 3
EWD DC/DC Series Data Sheet
Model Selection
MODEL
INPUT VOLTAGE
(VOLTS)
INPUT VOLTAGE
RANGE (VOLTS)
MAXIMUM INPUT
CURRENT (AMPS)*
OUTPUT
VOLTAGE (VOLTS)
RATED OUTPUT
CURRENT (AMPS)
RIPPLE & NOISE
pk-pk (mV)
TYPICAL
EFFICIENCY**
EWD505
EWD512
EWD515
EWD1205
EWD1212
NOTES:
5
5
5
12
12
4.5 - 9
4.5 - 9
4.5 - 9
9 - 18
9 - 18
1.64
1.85
1.85
0.69
0.75
±5
±12
±15
±5
±12
±0.50
±0.25
±0.20
±0.50
±0.25
50
120
150
50
120
72%
81%
81%
80%
82%
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
Model numbers highlighted in yellow or shaded are not recommended for new designs.
Mechanical Drawing
1.00"
(25.4mm)
0.18" MIN.
(4.6mm)
0
3
4
5
DIA 0.040"
(1.0mm)
2.00"
(50.8mm)
0.800"(20.3mm)
1
2
1.40"(35.6mm)
0.800"
0.300" 0.500" (20.3mm)
-0.10"
(-2.5mm) (7.6mm) (12.7mm)
0.400"
(10.2mm)
0
0.40"
(10.2mm)
BOTTOM VIEW
Thermal Impedance
Natural convection
100 LFM
200 LFM
300 LFM
400 LFM
15.4 °C/W
12.2 °C/W
9.3 °C/W
7.4 °C/W
6.4 °C/W
Pin
1
2
3
4
5
Function
+V
in
-V
in
+ V
out
Common
- V
out
Inches:
.XX ± 0.040
.XXX ± .010
Pin:
± 0.002
Case:
+ 0.04, - 0.00
Tolerances
(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
(Tolerances as listed unless otherwise
specified.)
REV. JUL 30, 2003
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OPTIONS
This page is offered as a reference. Consult factory for actual availability of options. When ordering
equipment options, use the following suffix information. Select preferred option(s) and add the suffix to the
model number. Ordering option examples are located below the options table.
OPTION
Negative Logic
Lucent-Compatible Trim
Trim
Enable
Trim and Enable
SUFFIX
N
T
1
2
3
APPLICABLE SERIES
HAS, HBD, HBS, HES, HLS, HLD, LES,
QBS, QES, QLS, TES, TQD
HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
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 Leaded Models
All Leaded Models
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD 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 respective divisional 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.
REV. JUL 30, 2003
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