DSN17 SERIES – SINGLE OUTPUT
DSN17 SERIES BLOCK DIAGRAM
OUTPUT POWER DERATING
20
+ INPUT
2
HIGH EFFICIENCY
CURRENT MODE
STEP DOWN
REGULATOR
+ INPUT
3
8
+ OUTPUT
15
9
+ OUTPUT
POWER OUTPUT
10
– INPUT
4
6
– OUTPUT
5
– INPUT
5
7
– OUTPUT
1
ON/OFF
0
40
60
70
80
50
AMBIENT TEMPERATURE
90
Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)
3.3 VOLT EFFICIENCY Vs. LOAD
95
90
3.3 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
95
90
50% FULL LOAD
3.3 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
3.5
INPUT CURRENT (AMPS)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
1
2
3
4
100% LOAD
EFFICIENCY (%)
85
80
75
70
0
10
20
30
40
50
60
70
80
90 100
EFFICIENCY (%)
85
100% FULL LOAD
80
75
70
4.0
50% LOAD
4.5
5.0
5.5
6.0
5
6
LOAD (%)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
5.0 VOLT EFFICIENCY Vs. LOAD
95
90
3.3 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
95
50% FULL LOAD
90
5.0 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
3.5
INPUT CURRENT (AMPS)
3.0
2.5
2.0
1.5
1.0
50% LOAD
0.5
0.0
0
2
4
6
8
10
12
14
16
100% LOAD
EFFICIENCY (%)
EFFICIENCY (%)
100% FULL LOAD
85
80
75
70
85
80
75
70
0
10
20
30
40
50
60
70
80
90 100
6
7
8
9
10
11
12
13
14
15
LOAD (%)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
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NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous environments,
or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are
subject to change without notice.
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