P
POLYTRON DEVICES, Inc.
10 WATT
SINGLE & DUAL OUTPUT
Regulated, Wide Input (2:1 and 4:1)
DC/DC Converters
Specifications
FEATURES
• UL & CE Approved
• 2:1 + 4:1 Input Voltage
• -40°C to +85°C
Operating Temp. Range
Available
• Low Profile Package
(1.0” x 2.0” x 0.375”)
• Input/Output Isolation
• Efficiency to 82% @ FL
• Short Circuit & Over-
Voltage Protection
• 6-Sided Continuous
Metal Shielding
• Epoxy Encapsulated
LWA10/LWB10 Series
All specifications are typical at nominal input, full load, and 25˚C ,
unless otherwise noted.
INPUT
LWA Series (2:1).................................................................See Table
LWB Series (4:1).................................................................See Table
Input Filter.........................................................................Pi Network
OUTPUT
Voltage Accuracy.........................................................................±2%
Line Regulation .......................................................................±1.0%
Load Regulation...................................±1.0% (Single), ±2.0% (Dual)
Ripple Noise (20 MHz BW)
Single Output..............................................................50mVp-p max.
Dual Output.................................................................75mVp-p max.
Temperature Coefficient (at FL).........................................±0.02%/°C
Transient Response, 25% load step.................................500µs max.
GENERAL
Efficiency...............................................................76-84%, see Table
Isolation Voltage..........................................................1500 Vdc min.
Isolation Resistance.......................................................1000MOhms
Switching Frequency.......................................................200KHz typ.
ENVIRONMENTAL
Operating Temperature Range.......................................-25 to +71°C
......................-40 to +85°C available *
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
Dimensions........................................................1.00" x 2.00" x 0.40"
(25.4 x 50.8 x 10.2 mm)
* For -40 to +85°C operating temp range, use suffix "W" after model number.
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
39
10 Watt Single & Dual Output DC/DC Converters
LWA10/LWB10 Series
Mechanical Specifications
I/O Connections
Pin
1
2
3
4
5
SINGLE
+Vin
-Vin
+Vout
No Pin
-Vout
DUAL
+Vin
-Vin
+Vout
Common
-Vout
Options Available
-40°C to +85°C
Operating
Temp. Range
Suffix
W
1.00
(25.40)
0.40
(10.20)
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
41
PCB Design
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