Output Power
Ef
ficiency
(%
)
10%
20%
30%
40%
50%
60%
70%
80%
90% 100%
60%
65%
70%
75%
80%
85%
D001
D001
115 V RMS
230 V RMS
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Test Points
7
SLUUBU4B – March 2018 – Revised June 2018
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Copyright © 2018, Texas Instruments Incorporated
Using the UCC28742EVM-001 10-W Converter
5
Test Points
Table 2. Test Point Functions
TEST POINTS
NAME
DESCRIPTION
TP1
L
AC line voltage input
TP2
N
AC neutral input
TP3
VOUT +
Output supply
TP4
VOUT –
Output return
6
Performance Data and Typical Characteristic Curves
6.1
Efficiency
Table 3. Efficiency Test Data
V
IN
RMS
V
OUT
I
OUT
P
IN
EFFICIENCY
115 V
5.018 V
0.000 A
0.055 W
N/A
115 V
5.017 V
0.201 A
1.268 W
79.5%
115 V
5.015 V
0.501 A
3.072 W
81.8%
115 V
5.014 V
1.002 A
6.124 W
82.0%
115 V
5.013 V
1.500 A
9.183 W
81.9%
115 V
5.011 V
2.004 A
12.244 W
82.0%
230 V
5.019 V
0.000 A
0.072 W
N/A
230 V
5.017 V
0.201 A
1.317 W
76.6%
230 V
5.015 V
0.501 A
3.086 W
81.4%
230 V
5.015 V
1.002 A
6.097 W
82.4%
230 V
5.013 V
1.500 A
9.121 W
82.5%
230 V
5.011 V
2.004 A
12.157 W
82.6%
Figure 4. Efficiency
