Datasheet

EFFICIENCY vs. LOAD CURRENT
0.800
0.810
0.820
0.830
0.840
0.850
0.860
0.870
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3
LOAD(A)
E F F IC IE N C Y
85VA C
115VAC
230VAC
264VAC
No-Load Power Consumption vs. Line Voltage
265Vac
230Vac
85V ac
115Vac
0
20
40
60
80
100
120
140
80 100 120 140 160 180 200 220 240 260 280
Line Voltage (Vac)
In p u t P o w e r ( m W )
Performance Data and Typical Characteristic Curves www.ti.com
7 Performance Data and Typical Characteristic Curves
Figure 6 through Figure 23 present typical performance curves for the UCC28610EVM-474.
Figure 6. Efficiency as a Function of Load Current and Input Voltage
Figure 7. No-Load Input Power as a Function of Input Voltage
14
UCC28610EVM-474 25-W Universal Off-Line Flyback Converter SLUU383C– November 2009– Revised June 2011
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