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EWD SERIES - DUAL OUTPUT, 5 WATT
DESCRIPTION
FEATURES
EWD dual output DC/DC converters offer excellent • Industry Standard Package • 5V and 12V Inputs
regulation and isolation in an industry standard
• Industry Standard Pinout • Input Pi Filter
package. Available in several input versions, the EWD • 85°C Case Operation
is perfect for industrial, datacom, or telecom
applications. The EWD features short circuit
• Short Circuit Protection
protection, six-sided shielding, and 500 VDC isolation.
• 6-Sided Shielding
• Regulated Outputs
• 500V Isolation
Please see the EWS series for single output
applications.
Efficiency vs. Load (5V Input)
TECHNICAL SPECIFICATIONS
Voltage Range
5V DC Nominal
12 VDC Nominal
Reflected Ripple
Reverse Input Current
Input
Output
Setpoint Accuracy
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
4.5 - 9 VDC
9 - 18 VDC
20% Iin Max.
100% Iin Max.
±1%
±1.0% Vout
±1.0% Vout
10 % Iout Rated
25% Iout
1% Vout
500 µs
0.02%/°C
1% Vout Nom.
Hiccup
130%
90
85
80
75
70 EFF. (505)
65 EFF. (512)
EFF. (515)
60
55
50
10 20 30 40 50 60 70 80 90 100
LOAD %
Efficiency vs. Load (12V Input)
90
85
80
75
70
65
EFF. EWS1212
60
EFF. EWS1215
55
50
45
10 20 30 40 50 60 70 80 90 10
LOAD %
General
Switching Frequency
Isolation
Input - Output
Isolation Resistance - Input to Output
Standard Case Operating Range
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 +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.
C-66
EWD SERIES - DUAL OUTPUT, 5 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
Vin Range
(Volts)
Iin Max.*
(Amps)
Vout
(Volts)
5
4.5 - 9
1.64
±5
5
4.5 - 9
1.85
±12
5
4.5 - 9
1.85
±15
12
9 - 18
0.69
±5
12
9 - 18
0.75
±12
12
9 - 18
0.73
±15
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
Iout Rated
(Amps)
±0.50
±0.25
±0.20
±0.50
±0.25
±0.20
MECHANICAL DRAWING
1.00"
(25.4mm)
Ripple & Noise
Pk-Pk (mV)
50
120
150
50
120
150
0.18" MIN.
(4.6mm)
Efficiency
Typ. **
72%
81%
81%
80%
82%
83%
Model
EWD505
EWD512
EWD515
EWD1205
EWD1212
EWD1215
34 5
0
0.800"(20.3mm)
12
2.00"
(50.8mm)
DIA 0.040"
(1.0mm)
1.40"(35.6mm)
0
-0.10" 0.300"
(-2.5mm) (7.6mm)
0.800"
0.500" (20.3mm)
(12.7mm)
0.400"
(10.2mm)
BOTTOM VIEW
0.40"
(10.2mm)
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
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
Pin Function
1 +Vin
2 -Vin
3 + Vout
4 Common
5 - Vout
C-67
Tolerances
Inches:
.XX ± 0.040
.XXX ± 0.010
(Millimeters)
.X ± 1.0
.XX ± 0.25
Pin:
± 0.002
± 0.05
Case:
+ 0.04, - 0.00
+ 1.0, - 0.0
(Tolerances as listed unless otherwise
specified.)
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