DN_FW.pdf

DC-DC Converter UNIT
FW Series ( 8 W WIDE INPUT RANGE DC-DC CONVERTER )
FEATURES
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8W DIL PACKAGE
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 > 700,000 HOURS
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OUTPUT SPECIFICATIONS
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Voltage Setpoint Accuracy
+/-2% max
Temperature Coefficient
+/-0.03%/ C
O
Ripple & Noise (20MHz
INPUT SPECIFICATIONS
Input Voltage Range
2:1 INPUT RANGE
Input Filter
Pi Network
100mVp-p max
BW)
Line Regulation
1
Load Regulation
+/-0.2% max
2
Short Circuit Protection
+/-0.2% max
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Continuous
Efficiency
GENERAL SPECIFICATIONS
70% min
3
Isolation Voltage
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ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Isolation Resistance
-25 C to +71 C
O
Storage Temperature
O
-55 OC to +125 OC
Cooling
Free-Air Convection
Switching Frequency
MTBF
Weight
Case Material
ALL SPECIFICATIONS TYPICAL AT NOMINAL
LINE,
FULL
LOAD
,
AND
25
O
C
Case Size
1000 VDC min
9
10 ohms min
50 KHz min
700,000 Hours
31.2g Typ
Five-Side Shielded Case
50.8mm*25.4mm*11.2mm
UNLESS
OTHERWISE NOTED.
1
High Line to Low Line.
2
Load Regulation is for output load current change from 10% to 100%.
3
For 10 seconds
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Page: 1 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
FW Series ( 8 W WIDE INPUT RANGE DC-DC CONVERTER )
z SELECTION GUIDE
8W OUTPUT
INPUT
OUTPUT
OUTPUT
VOLTAGE
VOLTAGE
CURRENT
(VDC)
(VDC)
(mA)
FWS-1203.3
9-18
3.3
2000
FWS-1205
9-18
5
FWS-1209
9-18
FWS-1212
MODEL
NUMBER
INPUT4
CURRENT(mA)
EFF
(%)
5
ISOLATION
(VDC)
FULL
NO
LOAD
LOAD
753
50
73
1000
1600
888
50
75
1000
9
888
813
50
82
1000
9-18
12
670
813
50
82
1000
FWS-1215
9-18
15
533
803
50
83
1000
FWD-1205
9-18
+/-5
+/-800
867
50
77
1000
FWD-1209
9-18
+/-9
+/-444
860
40
78
1000
FWD-1212
9-18
+/-12
+/-335
813
50
82
1000
FWD-1215
9-18
+/-15
+/-267
803
50
83
1000
FWS-2403.3
18-36
3.3
2000
367
25
75
1000
FWS-2405
18-36
5
1600
422
25
79
1000
FWS-2409
18-36
9
888
402
25
83
1000
FWS-2412
18-36
12
670
402
25
83
1000
FWS-2415
18-36
15
533
402
25
83
1000
FWD-2405
18-36
+/-5
+/-800
422
25
79
1000
FWD-2409
18-36
+/-9
+/-444
420
30
79
1000
FWD-2412
18-36
+/-12
+/-335
402
25
83
1000
FWD-2415
18-36
+/-15
+/-267
402
25
83
1000
FWS-4803.3
36-72
3.3
2000
183
15
75
1000
FWS-4805
36-72
5
1600
210
15
79
1000
FWS-4809
36-72
9
888
201
15
83
1000
FWS-4812
36-72
12
670
201
15
83
1000
FWS-4815
36-72
15
533
201
15
83
1000
FWD-4805
36-72
+/-5
+/-800
201
15
83
1000
FWD-4812
36-72
+/-12
+/-335
201
15
83
1000
FWD-4815
36-72
+/-15
+/-267
201
15
83
1000
Note: Other input to output voltages may be available. Please contact factory.
4
NOMINAL INPUT VOLTAGE.
5
NOMINAL INPUT VOLTAGE,FULL LOAD.
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Page: 2 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
FW Series ( 8 W WIDE INPUT RANGE DC-DC CONVERTER )
z SIMPLIFIED SCHEMATIC
SINGLE OUTPUT
+Vin
DUAL OUTPUT
+Vout
+Vin
+Vout
Common
-Vout
-Vout
-Vin
-Vin
PFM
CONTROLLER
ISOLATION
REFERENCE
&
ERROR AMP
PFM
CONTROLLER
REFERENCE
&
ERROR AMP
ISOLATION
z MECHANICAL DIMENSIONS
PACKAGE
PIN
SINGLE
DUAL
1
+Vin
+Vin
2
-Vin
-Vin
3
+Vout
+Vout
4
NO PIN
Common
5
-Vout
-Vout
z RECOMMENDED FOOTPRINT DETAILS
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Page: 3 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
FW Series ( 8 W WIDE INPUT RANGE DC-DC CONVERTER )
z TYPICAL APPLICATIONS
SINGLE OUTPUT
INPUT
DUAL OUTPUT
OUTPUT
+Vin
INPUT
OUTPUT
+Vout
+Vin
+Vout
LOAD1
LOAD
DC-DC
CONVERTER
-Vin
Common
DC-DC
CONVERTER
-Vin
-Vout
LOAD2
-Vout
z TEMPERATURE DERATING
OUTPUT POWER(W)
8.0
6.0
SAFE
4.0
OPERATING
2.0
AREA
0.0
-25
0
25
50
70
90
TA(degree C)
FW SERIES APPLICATION NOTES:
EXTERNAL CAPACITANCE REQUIREMENTS:
No external capacitance is required for operation of the FW series.
To meet the reflected ripple requirements of the converter, an input impedance of less than 0.5 ohm
from DC to 220KHz 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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Page: 4 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
FW Series ( 8 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 ) Dörnet 8
Tel: + 49 / 70 62 / 67 59 – 6
E-mail: [email protected]
Home Page: www.Power-Systems.de
www.Power-Systems.de
Page: 5 / 5
Fax: + 49 / 70 62 / 67 59 -80
Version: 4-Oct-02
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