P
POLYTRON DEVICES, Inc.
15 WATT
SINGLE & DUAL OUTPUT
Isolated, Wide Input
DC/DC Converters
Specifications
FEATURES
• UL & CE Approved
• -40°C to +85°C
Operating Temp. Range
• Low Pro le Package
(1.0” x 2.0” x 0.40”)
• Input/Output Isolation
• E ciency to 86% @ FL
• Short Circuit & Over-
Voltage Protection
• 6-Sided Continuous
Metal Shielding
• Epoxy Encapsulated
LWA15 Series
Typical at 25˚C under full load and nominal input voltage, unless
otherwise specified
INPUT
Input Voltages..............................................................Voltage Range
12 Vdc......................................................................9-18 Vdc
24 Vdc....................................................................18-36 Vdc
48 Vdc....................................................................36-72 Vdc
OUTPUT
Voltage Accuracy.................................................................±2% max.
Line Regulation ...............................................................±0.5% max.
Load Regulation...............................................................±0.5% max.
Ripple Noise (20 MHz BW)
5 V...............................................................100mV p-p max.
12V, 15.......................................................1% Vout p-p max.
Temperature Coefficient (at FL).................................±0.02%/°C max.
Transient Response, 25% load step..............................200µms max.
GENERAL
Efficiency...............................................................79-89%, see Table
Isolation Voltage...........................................................1500 Vdc min.
Isolation Resistance.......................................................1000MOhms
Switching Frequency.......................................................200KHz typ.
Protection.......................................................Short Circuit Protection
......................................................Over Voltage Protection
ENVIRONMENTAL
Operating Temperature Range................-40 to +85°C
(with derating)
Storage Temperature Range.........................................-55 to +105°C
Cooling................................................................Free Air Convection
EMI/RFI.................................................Six-Sided Continuous Shield
PHYSICAL
Case Material...................................................Nickel Coated Copper
with Non-Conductive Base
Weight...............................................................1.5 oz. (42.52 grams)
Dimensions.......................................................1.00" x 2.00" x 0.40"
(25.4 x 50.8 x 10.16 mm)
P.O. Box 398, Paterson, New Jersey 07544 U.S.A.
Tel: (973)345-5885 Fax: (973)345-1264 • Email: sales@polytrondevices.com • www.polytrondevices.com
52
15 Watt Single & Dual Output DC/DC Converters
Selection Guide
Input Voltage
Nominal (Range)
(Vdc)
12 (9-18)
Output
Voltage
(Vdc)
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
±5
±12
±15
±5
±12
±15
±5
±12
±15
Output
Current
(mA)
4000
3000
1250
1000
4000
3000
1250
1000
4000
3000
1250
1000
±1500
±625
±500
±1500
±625
±500
±1500
±625
±500
Model Number
LWA15-12S33
LWA15-12S5
LWA15-12S12
LWA15-12S15
LWA15-24S33
LWA15-24S5
LWA15-24S12
LWA15-24S15
LWA15-48S33
LWA15-48S5
LWA15-48S12
LWA15-48S15
LWA15-12-5
LWA15-12-12
LWA15-12-15
LWA15-24-5
LWA15-24-12
LWA15-24-15
LWA15-48-5
LWA15-48-12
LWA15-48-15
Case
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
LWA15 Series
(Continued)
Efficiency
%
79
79
80
80
89
79
80
80
80
79
80
80
82
80
80
83
80
80
83
80
80
SINGLE OUTPUT VOLTAGE
24 (18-36)
48 (36-72)
DUAL OUTPUTS
12 (9-18)
24 (18-36)
48 (36-72)
Mechanical Specifications
I/O Connections
SINGLE
+Vin
-Vin
+Vout
No Pin
-Vout
1.00
(25.40)
0.40
(10.20)
Pin
1
2
3
4
5
DUAL
+Vin
-Vin
+Vout
Common
-Vout
0.50
(12.70)
0.40
(10.20)
0.4 MAX
(10.16)
3
4
5
BOTTOM
VIEW
1
2
2.00
0.80
(20.30) (50.80)
DIA.
0.04
(1.00)
0.60
(15.20)
0.10
(2.50)
0.22 MIN
(5.60)
0.20
(5.10)
All Dimensions are in inches (mm)
P
POLYTRON DEVICES, Inc.
P.O. Box 398, Paterson, New Jersey 07544 U.S.A.
Tel: (973)345-5885 Fax: (973)345-1264 • Email: sales@polytrondevices.com • www.polytrondevices.com
53
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