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General Specifications
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Characteristic
Minimum
Typical
Maximum
Units
%
Notes & Conditions
Efficiency
93
95
Full load (see fig.7 & 8)
4000
1500
500
VAC
VAC
VAC
kHz
W/in3
Isolation: Input to Output
Input to Ground
Output to Ground
Switching Frequency
Power Density
30-500 / 25.6 / 51.2
PFC / Boost / Main Converter.
6.9
MIL-HDBK-217F, Notice 2
+25 °C GB
Mean Time Between Failure
Weight
365
kHrs
lb (g)
1.7 (780)
Efficiency Versus Load
100%
100%
90%
80%
70%
60%
50%
40%
90%
80%
70%
60%
50%
40%
10
20
30
40
50
Load (%)
60
70
80
90
100
10
20
30
40
50
60
70
80
90
100
Load (%)
230Vac input
230VAC input
Figure 7
Figure 8
CCM250PS12
CCM250PS24
Power Loss
Waste heat creates a big headache for system designers. The industry leading efficiency achieved by the CCM250 is 5-10% above existing topologies
used in this power area. This can result in a 70% reduction in generated heat as shown below and enables the overall system to run much cooler and
more reliably.
Example 2
Example 1
Conventional Products
CCM250
95 %
Conventional Products
CCM250
95 %
Efficiency
85 %
44.1 W
100 %
Efficiency
90 %
27.8 W
100 %
Generated Heat
% Losses
13.1 W
30 %
Generated Heat
% Losses
13.1 W
47 %
5
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