DC-DC Converter UNIT
SR Series
(0,5W TO 1W REGULATED DC-DC CONVERTER)
FEATURES
1000VDC ISOLATION
EFFICIENCY UP TO 72%
INTERNAL SMD TECHNOLOGY
LOW COST
NO HEATSINK REQUIRED
UP TO 1W REGULATED OUTPUT
POWER
DUAL IN LINE PACKAGE
100% BURNED IN
MTBF > 2,000,000 HOURS
OUTPUT SPECIFICATIONS
Voltage Setpoint Accuracy
Temperature Coefficient
Ripple & Noise (20MHz
BW)
Line Regulation
1
Load Regulation
2
Short Circuit Protection
Short Circuit Restart
+/-0.5% max
+/-0.5% max
Current limit Protection
Automatic
+/-2% max
+/-0.03%/
O
C
100mVp-p max
INPUT SPECIFICATIONS
Input Voltage Range
Input Filter
+/-10% max
Capacitor Type
GENERAL SPECIFICATIONS
Efficiency
Isolation Voltage
3
Isolation Resistance
Switching Frequency
Isolation Capacitance
MTBF
Weight
50% min
1000 VDC min
9
10 ohms min
50 KHz min
80pF max
2,000,000 Hours
3.1g Typ
Non-Conductive Plastic
22.6mm*9.9mm*8.4mm
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Storage Temperature
Cooling
-25
O
C to +71
O
C
-55
O
C to +125
O
C
Free-Air Convection
ALL SPECIFICATIONS TYPICAL AT NOMINAL
LINE,
FULL
LOAD
,
AND
25
O
Case Material
Case Size
C
UNLESS
OTHERWISE NOTED.
1
2
3
High Line to Low Line.
Load Regulation is for output load current change from 20% to 100%.
For 60 seconds
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Page: 1 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
SR Series
(0,5W TO 1W REGULATED DC-DC CONVERTER)
SELECTION GUIDE
0.5W-1W OUTPUT
MODEL
NUMBER
INPUT
(VDC)
4.5-5.5
4.5-5.5
4.5-5.5
4.5-5.5
10.8-13.2
10.8-13.2
10.8-13.2
10.8-13.2
21.6-26.4
21.6-26.4
21.6-26.4
21.6-26.4
43.2-52.8
43.2-52.8
43.2-52.8
43.2-52.8
4.5-5.5
4.5-5.5
4.5-5.5
4.5-5.5
10.8-13.2
10.8-13.2
10.8-13.2
10.8-13.2
21.6-26.4
21.6-26.4
21.6-26.4
21.6-26.4
43.2-52.8
43.2-52.8
43.2-52.8
43.2-52.8
OUTPUT
(VDC)
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
OUTPUT
(mA)
100
56
42
34
100
56
42
34
100
56
42
34
100
56
42
34
200
111
84
67
200
111
84
67
200
111
84
67
200
111
84
67
INPUT
CURRENT(mA) EFF ISOLATION
FULL
LOAD
NO
LOAD
12
11
11
37
7
5
5
5
4
3
9
3
2
2
2
2
23
22
22
21
12
13
11
11
7
6
6
6
4
3
3
3
62
57
62
58
67
63
65
65
65
65
58
70
58
58
65
65
62
60
62
62
67
62
64
64
68
65
70
70
70
70
72
72
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
1000
1000
OUTPUT
POWER
(Watt)
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
0.5W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
1W
VOLTAGE VOLTAGE CURRENT
(%)
(VDC)
SRS-0505-1
SRS-0509-1
SRS-0512-1
SRS-0515-1
SRS-1205-1
SRS-1209-1
SRS-1212-1
SRS-1215-1
SRS-2405-1
SRS-2409-1
SRS-2412-1
SRS-2415-1
SRS-4805-1
SRS-4809-1
SRS-4812-1
SRS-4815-1
SRS-0505-2
SRS-0509-2
SRS-0512-2
SRS-0515-2
SRS-1205-2
SRS-1209-2
SRS-1212-2
SRS-1215-2
SRS-2405-2
SRS-2409-2
SRS-2412-2
SRS-2415-2
SRS-4805-2
SRS-4809-2
SRS-4812-2
SRS-4815-2
161
175
161
173
62
66
64
64
32
32
36
30
18
18
16
16
322
333
322
322
124
134
130
130
61
64
60
60
30
30
29
29
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Page: 2 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
SR Series
(0,5W TO 1W REGULATED DC-DC CONVERTER)
MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS
PIN
1 & 16
6 & 11
7 & 10
8&9
SINGLE
+Vin
-Vout
+Vout
-Vin
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Page: 3 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
SR Series
(0,5W TO 1W REGULATED DC-DC CONVERTER)
SIMPLIFIED SCHEMATIC
TYPICAL
APPLICATIONS
INPUT
+Vout
+Vin
+Vout
+Vin
OSCILLATOR
DRIVER
REGULATOR
OUTPUT
-Vin
-Vout
DC-DC
CONVERTER
-Vin
-Vout
LOAD
TYPICAL PERFORMANCE CUREVES
DERATING CURVE
1.2
EFFICIENCY VS LOAD
EFFICIENCY(%)
70
100
OUTPUT POWER(W)
0.9
0.6
0.3
0.0
-25
0
25
50
80.0
60.0
40.0
20.0
0.0
0
20
40
60
80
100
SAFE
OPERATING
AREA
TA(degree C)
% OF RATED LOAD(%)
SR SERIES APPLICATION NOTES:
EXTERNAL CAPACITANCE REQUIREMENTS:
No external capacitance is required for operation of the SR series.
To meet the reflected ripple requirements of the converter, an input impedance of less than 0.5 ohm
from DC to 250KHz 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 100uF.
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Page: 4 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
SR Series
(0,5W TO 1W REGULATED 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
74360 Ilsfeld-Auenstein ( Germany ) Dörnet 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
www.Power-Systems.de
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Version: 4-Oct-02
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