Datasheet

CPS20.481-D1
C-Series
48V, 10A, DC/DC CONVERTER
9. EFFICIENCY AND POWER LOSSES
DC 110V DC 300V
Efficiency typ. 93.1% 94.6% at 48V, 10A
typ. 93.1% 94.5% at 48V, 12A (Power Boost)
Average efficiency
*)
typ. 92.1% 93.3% 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
Power losses typ. 7.4W 2.5W at 48V, 0A
typ. 20.0W 15.9W at 48V, 5A
typ. 35.6W 27.4W at 48V, 10A
typ. 42.7W 33.5W at 48V, 12A (Power Boost)
*) The average efficiency is an assumption for a typical application where the DC/DC converter is loaded with 25% of the nominal load for
25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with
100% of the nominal load for the rest of the time.
Fig. 9-1 Efficiency vs. output current at 48V,
typ
Fig. 9-2 Losses vs. output current at 48V, typ.
Efficiency
234567 910 12A
88
89
90
91
92
93
94
95
96%
Output Current
811
a) 110Vdc
b) 300Vdc
b
a
Power Losses
01 34 67 12A
10
0
15
20
25
40W
910
30
2 5 8
Output Current
11
b
a
35
5
a) 110Vdc
b) 300Vdc
Fig. 9-3 Efficiency vs. input voltage at 48V,
10A, typ.
Fig. 9-4 Losses vs. input voltage at 48V, 10A,
typ.
Efficiency
80 140
200
260 320 380Vdc
90
91
92
93
94
95
96%
Input Voltage
Power Losses
10
15
20
25
30
35
40W
80 140
200
260 320 380Vdc
Input Voltage
Apr. 2014 / Rev. 1.3 DS-CPS20.481-D1-EN
All parameters are specified at 48V, 10A, 300Vdc, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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