LS4899-7B1 Ver la hoja de datos (PDF) - Power-One Inc.
Número de pieza
componentes Descripción
Fabricante
LS4899-7B1 Datasheet PDF : 27 Pages
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Cassette Style
100 Watt AC-DC Converters
S Series PFC
[V] Uo2
13
12.5
12.0
05083
Io1 =100 %
Io1 = 50 %
Io1 = 10 %
11.5
11
10.5
0
0.2 0.4 0.6 0.8
1
Fig. 10
LS 5320: DUo2 (typ.) vs. Io2 with different Io1.
Io2/Io2 nom
[V] Uo2
16.5
16
15.5
15
14.5
05084
Io1 = 100%
Io1 = 50%
Io1 = 10%
14
13.5
0
0.2 0.4 0.6 0.8
1
Fig. 11
LS 5540: DUo2 (typ.) vs. Io2 with different Io1.
Io2/Io2 nom
[V] Uo2
27
26
25
24
05085
Io1 = 100%
Io1 = 50%
Io1 = 10%
23
22
21
0
0.2 0.4 0.6 0.8
1
Fig. 12
LS 5660: DUo2 (typ.) vs. Io2 with different Io1.
Io2/Io2 nom
Switching Frequency versus Load
Frequency [kHz]
05008
80
70
60
50
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1 1.2 load [Io/Io nom]
Fig. 13
Switching frequency versus load. (The boost converter at
the input stage has a fixed frequency of 100 kHz)
Dynamic Load Regulation
Uo1
Uo1d
Ur
05005
Ur
Uo1d
td
td
t
Uo2
Uo2d
t
Io1/Io1 nom
Io2/Io2 nom 1
0.5 <10 µs
<10 µs
0
t
Fig. 14
Typical dynamic load regulation of Uo1 and Uo2.
Hold-up Time versus Output Power
time [ms]
180
160
140
120
100
80
60
40
20
0
0
0.2
0.4
0.6
0.8
Fig. 15
Hold-up time th versus output power.
05013
1 Io /Io nom
Efficiency versus Load
Efficiency
0.90
05014
0.80
0.70
Ui = 230 V AC
Ui = 85 V AC
0.60
0.50
0.40
0.30
0
0.2
0.4
0.6
0.8
1 Io/Io nom
Fig. 16
Efficiency versus load at Ui; 230 V AC and 85 V AC
Edition 01/01.2001
10/27
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