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DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
FEATURES
5W DIL PACKAGE 4.5-9,9-18V,18-36V,36-72V WIDE INPUT RANGE SHORT CIRCUIT PROTECTION LOW COST NO EXTERNAL COMPONENTS REQUIRED REGULATED OUTPUT TYPICAL EFFICIENCY 80% 100% BURNED IN INDUSTRY STANDARD PACKAGE MTBF > 800,000 HOURS
OUTPUT SPECIFICATIONS
Voltage Setpoint Accuracy Temperature Coefficient Ripple & Noise (20MHz BW) Line Regulation
1 2
INPUT SPECIFICATIONS
+/-2% max +/-0.03%/ C
O
Input Voltage Range Input Filter
2:1 INPUT RANGE Pi Network
100mVp-p max
+/-0.2% max +/-0.2% max Continuous
Load Regulation
GENERAL SPECIFICATIONS
Efficiency Isolation Voltage
3
Short Circuit Protection
70% min 1000 VDC min 9 10 ohms min 50 KHz min 800,000 Hours 31.2g Typ Five-Side Shielded Case 50.8mm*25.4mm*11.2mm
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature Storage Temperature Cooling -25 C to +71 C
O O
Isolation Resistance Switching Frequency MTBF Weight Case Material
-55 OC to +125 OC Free-Air Convection
ALL SPECIFICATIONS TYPICAL AT NOMINAL LINE, FULL LOAD , AND 25
O
Case Size
C
UNLESS
OTHERWISE NOTED.
1 2 3
High Line to Low Line. Load Regulation is for output load current change from 10% to 100%. For 10 seconds
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Version: 4-Oct-02
DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
SELECTION GUIDE(1) 2:1 5W OUTPUT
MODEL NUMBER LWS-0505E LWS-0512E LWS-0515E LWS-1203.3E LWS-1205E LWS-1209E LWS-1212E LWS-1215E LWD-1205E LWD-1209E LWD-1212E LWD-1215E LWS-2403.3E LWS-2405E LWS-2409E LWS-2412E LWS-2415E LWD-2405E LWD-2409E LWD-2412E LWD-2415E LWS-4803.3E LWS-4805E LWS-4809E LWS-4812E LWS-4815E LWD-4805E LWD-4809E LWD-4812E LWD-4815E INPUT VOLTAGE (VDC)
4.5-9 4.5-9 4.5-9 9-18 9-18 9-18 9-18 9-18 9-18 9-18 9-18 9-18 18-36 18-36 18-36 18-36 18-36 18-36 18-36 18-36 18-36 36-72 36-72 36-72 36-72 36-72 36-72 36-72 36-72 36-72
OUTPUT VOLTAGE (VDC)
5 12 15 3.3 5 9 12 15 +/-5 +/-9 +/-12 +/-15 3.3 5 9 12 15 +/-5 +/-9 +/-12 +/-15 3.3 5 9 12 15 +/-5 +/-9 +/-12 +/-15
OUTPUT CURRENT (mA)
1000 417 333 1500 1000 556 417 333 +/-500 +/-278 +/-208 +/-167 1500 1000 556 417 333 +/-500 +/-278 +/-208 +/-167 1500 1000 556 417 333 +/-500 +/-278 +/-208 +/-167
INPUT4 CURRENT(mA)
FULL LOAD 1535 1420 1390 589 556 520 519 514 556 525 519 514 290 270 257 254 251 270 257 254 251 135 135 126 126 123 135 126 126 123 NO LOAD 30 30 20 33 30 30 28 28 29 28 28 28 16 14 14 13 13 14 14 13 12 10 8 7 7 7 8 7 7 7 65 70 72 70 75 80 80 81 75 79 80 81 71 77 81 82 83 77 81 82 83 77 77 83 83 85 77 83 83 85 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
EFF (%)5
ISOLATION (VDC)
Note: Other input to output voltages may be available. Please contact factory.
4 5
NOMINAL INPUT VOLTAGE. NOMINAL INPUT VOLTAGE,FULL LOAD.
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Version: 4-Oct-02
DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
SELECTION GUIDE(2) 4:1 5W OUTPUT
MODEL NUMBER LWS-1203.3T LWS-1205T LWS-1209T LWS-1212T LWS-1215T LWD-1205T LWD-1212T LWD-1215T LWS-2403.3T LWS-2405T LWS-2409T LWS-2412T LWS-2415T LWD-2412T LWD-2415T INPUT VOLTAGE (VDC)
9-36 9-36 9-36 9-36 9-36 9-36 9-36 9-36 18-72 18-72 18-72 18-72 18-72 18-72 18-72
OUTPUT VOLTAGE (VDC)
3.3 5 9 12 15 +/-5 +/-12 +/-15 3.3 5 9 12 15 +/-12 +/-15
OUTPUT CURRENT (mA)
1500 1000 556 417 333 +/-500 +/-208 +/-167 1500 1000 556 417 333 +/-208 +/-167
INPUT6 CURRENT(mA)
FULL LOAD 555 535 548 525 520 530 527 520 277 277 267 260 257 257 257 NO LOAD 20 30 30 28 28 28 28 28 14 14 14 13 13 13 12 75 78 76 79 80 77 79 80 75 75 78 80 81 81 81 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
EFF (%)7
ISOLATION (VDC)
Note: Other input to output voltages may be available. Please contact factory.
6 7
NOMINAL INPUT VOLTAGE. NOMINAL INPUT VOLTAGE,FULL LOAD.
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Version: 4-Oct-02
DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
SIMPLIFIED SCHEMATIC
SINGLE OUTPUT
+Vin +Vout
+Vin
DUAL OUTPUT
+Vout Common
-Vout -Vin
PFM CONTROLLER ISOLATION REFERENCE & ERROR AMP
-Vout -Vin
PFM CONTROLLER ISOLATION REFERENCE & ERROR AMP
MECHANICAL DIMENSIONS
PIN 1 2 3 4 5
SINGLE +Vin -Vin +Vout NO PIN -Vout
DUAL +Vin -Vin +Vout Common -Vout
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Version: 4-Oct-02
DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
TYPICAL APPLICATIONS
SINGLE OUTPUT
INPUT
+Vin +Vout
DUAL OUTPUT
INPUT
+Vin +Vout
OUTPUT
OUTPUT
LOAD1
DC-DC CONVERTER
-Vin -Vout
LOAD
DC-DC CONVERTER
-Vin
Common
LOAD2
-Vout
TEMPERATURE DERATING
OUTPUT POWER(%)
125% 100% 75% 50% 25% 0% -25 0 25 50 70 100
RECOMMENDED FOOTPRINT DETAILS
SAFE OPERATING AREA
TA(degree C)
LW SERIES APPLICATION NOTES:
EXTERNAL CAPACITANCE REQUIREMENTS:
No external capacitance is required for operation of the LW series. To meet the reflected ripple requirements of the converter, an input impedance of less than 0.5 ohm from DC to 100KHz is required. External output capacitance is not required for operation, however it is recommended that 10uF tantalum and 0.1uF ceramic capacitance be selected for reduced system noise. Additional output capacitance may be added for increased filtering, but should not exceed 220uF.
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Version: 4-Oct-02
DC-DC Converter UNIT
LW Series ( 5 W WIDE INPUT RANGE DC-DC CONVERTER )
Negative Outputs:
A negative output voltage may be obtained by connecting the +OUT to circuit ground and connecting -OUT as the negative output.
FOR MORE INFORMATION CALL: Power Systems - The Power Solution
Ilsfeld-Auenstein ( Germany ) Dornet 8 E-mail: Info@Power-Systems.de Tel: + 49 / 70 62 / 67 59 - 6 Fax: + 49 / 70 62 / 67 59 -80 Home Page: www.Power-Systems.de
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Version: 4-Oct-02

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