AN1539 STMicroelectronics, AN1539 Datasheet - Page 10

• Manufacturer Part Number: AN1539
• Description: VIPOWER: LOW COST UNIVERSAL INPUT SMPS FOR DIGITAL SET-TOP BOX BASED ON VIPER50
• Manufacturer: STMicroelectronics

start up time is independent of the input voltage and depends only on the V
The voltage ripple at full load in the main outputs, i.e. 2.5V, 5V, 12V and 22V, is shown in Figure 9.
Table 4: Voltage regulation and power dissipation at no-load, T
Table 5: Voltage regulation and efficiency at full-load, T
Figure 5: V
(V
(V
V
V
115
230
265
115
230
265
85
85
inac
inac
rms
rms
)
)
DS
at no load at 110V
1.45
71%
73%
74%
73%
(W)
P
1.1
1.4
1
in
V
V
ac
2.53
2.53
2.53
2.53
2.49
2.49
2.50
2.49
(V)
(V)
out1
out1
and 220V
V
V
ac
3.28
3.28
3.28
3.28
3.24
3.24
3.24
3.24
(V)
(V)
out2
out2
amb
V
V
5.41
5.41
5.40
5.40
5.18
5.19
5.18
5.19
(V)
(V)
out3
out3
=30×C.
amb
=30ºC
AN1539 - APPLICATION NOTE
12.91
12.92
12.90
12.89
12.05
12.05
12.05
12.05
V
V
(V)
(V)
out4
out4
DD
capacitor.
V
V
24.6
24.7
24.6
24.6
22.2
22.2
22.1
22.1
(V)
(V)
out5
out5
V
V
32.5
32.5
32.5
32.5
32.9
32.8
32.8
32.9
(V)
(V)
out6
out6
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