Datasheet
CD5.121
CD-Series
DC/DC Converter 12V, 8A
7. EFFICIENCY AND POWER LOSSES
Input 24Vdc
Efficiency typ. 88.2% at 12V, 8A
Power losses typ. 0.6W at no output load
typ. 6.4W at 12V, 4A
typ. 12.8W at 12V, 8A
typ. 16.8W at 12V, 9.6A
Fig. 7-1 Efficiency vs. output current at 12V
output and 24Vdc input voltage, typ.
Fig. 7-2 Losses vs. output current at 12V
output and 24Vdc input voltage, typ.
Efficiency
1
85
87
89
84
90%
8
A
245
Output Current
3
86
88
67
Power Losses
012 45 8
A
0
3
9
15
18W
6
3
12
Output Current
67
Fig. 7-3 Efficiency vs. input voltage at 12V,
8A, typ.
Fig. 7-4 Losses vs. input voltage at 12V, 8A,
typ.
Efficiency
18 20 22 26 28 32Vd
c
89%
86.5
87.5
88.5
88.0
87.0
86.0
24 30
Input Voltage
Power Losses
0
4
8
12
16
20
24W
18 20 24 26 28 32Vd
c
22 30
Input Voltage
Oct 2009 / Rev. 1.3 DS-CD5.121-EN
All parameters are specified at 12V, 8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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