
5 Performance Data
5.1 Efficiency Versus Load, 10% to 100% Load
Load Current (A)
Ef
ficie
ncy (%)
0.25 0.5 0.75
1
1.25 1.5 1.75
2
2.25 2.5 2.75
50%
55%
60%
65%
70%
75%
80%
85%
90%
800 VIN
1000 VIN
Figure 5-1. UCC28C56EVM Efficiency vs Load
5.2 Efficiency Versus VIN at 100% Load
VIN (V)
Ef
ficie
ncy (%)
200
300
400
500
600
700
800
900
1000
75%
77.5%
80%
82.5%
85%
87.5%
90%
92.5%
95%
Figure 5-2. UCC28C56EVM Efficiency Versus VIN at 100% Load
Performance Data
SLUUCN1C – JUNE 2022 – REVISED DECEMBER 2022
Using the UCC28C56EVM-066 High-Density 40-W Auxiliary Power Supply for
800-V Traction Inverters
9
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