User manual

CD5.121
CD–Series
DC/DC Converter; 12V, 8A
Jan. 08 / Rev. 1.1 DS-CD5.121-EN / All parameters are specified at 12V, 8A and 24Vdc input at 25°C ambient unless otherwise noted.
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9. EFFICIENCY AND POWER LOSSES
Input 24Vdc
Efficiency typ. 88.2% 8A, 12V
Power losses typ. 0.6W At no output load
typ. 6.4W 4A, 12V
typ. 12.8W 8A, 12V
typ. 16.8W 9.6A, 12V
Fig. 9-1 Efficiency vs. output current at 12V
output voltage and 24V input voltage
Fig. 9-2 Losses vs. output current at 12V
output voltage and 24V input voltage
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. 9-3 Efficiency vs. input voltage, 12V, 8A
output
Fig. 9-4 Losses vs. input voltage, 12V, 8A
output
Efficiency
18 20 22 26 28 32 Vd
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 32 Vd
c
22 30
Input Voltage