Texas Instruments Buck-Boost PFC LED Driver Evaluation Module TPS92075EVM TPS92075EVM Datenbogen
Produktcode
TPS92075EVM
Performance Data and Typical Characteristic Curves – Configured as Buck-Boost
Table 2. System Scan of 27 Highest Peaks
Peak #
Limit
Frequency (Hz)
Level (dB)
Margin (dB)
1
QP
262000
58.9
–2.8
2
AV
262000
48.37
–3
3
QP
394000
54.95
–3
4
AV
394000
42.69
–5.3
5
QP
526000
51.45
–4.6
6
QP
798000
42.25
–13.8
7
QP
1042000
47.07
–8.9
8
QP
1186000
48.71
–7.3
9
QP
1326000
50.23
–5.8
10
QP
1458000
48.14
–7.9
11
QP
1958000
45.66
–10.3
12
QP
2110000
46.6
–9.4
13
QP
2258000
48.92
–7.1
14
QP
2746000
44.71
–11.3
15
QP
2906000
46.93
–9.1
16
QP
3058000
49.22
–6.8
17
QP
3190000
47.93
–8.1
18
QP
3678000
44.55
–11.5
19
QP
3846000
46.77
–9.2
20
QP
3990000
48.4
–7.6
21
QP
4782000
46.62
–9.4
22
QP
28686000
46.82
–13.2
23
QP
28838000
46.86
–13.1
24
QP
29178000
47.75
–12.3
25
QP
29342000
47.72
–12.3
26
QP
29654000
48.22
–11.8
27
QP
29950000
49.31
–10.7
NOTE:
When using unshielded inductors it is important that the devices sit in perpendicular planes.
If the input filter inductors are not positioned at right angles conducted emissions will
increase.
increase.
9
SLVU813A – November 2012 – Revised June 2013
Using the TPS92075 Buck-Boost Converter
Copyright © 2012–2013, Texas Instruments Incorporated