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參數(shù)資料
| 型號(hào)： | LS2540-9ERDDB2 |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 100 W AC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE S02, MODULE |
| 文件頁數(shù)： | 15/25頁 |
| 文件大小： | 591K |
| 代理商： | LS2540-9ERDDB2 |
Cassette Style
100 Watt AC-DC (DC-DC) Converters
S Series
Edition 01/01.2001
22/25
Threshold tolerances and hysteresis:
If
Ui is monitored, the internal input voltage after the input
filter and rectifier is measured. Consequently this voltage
differs from the voltage at the connector pins by the voltage
drop
DUti across input filter and rectifier. The threshold lev-
els of the D0 and D9 options are factory adjusted at nominal
output current
Io nom and at TA = 25
°C. The value of DU
ti de-
pends upon the threshold level
Ut, temperature and input
current. The input current is a function of the input voltage
and the output power.
Fig. 34
Definition of Uti, DUti and DUhi (JFET output)
DUti
Uhi
UD low
UD
UD high
Ui
P
o
=
P
o
nom
P
o
=
0
P
o
=
0
Uti
P
o
=
P
o
nom
11021
0
1
0.95
0
U
i [V DC]
0
t
low min
4
t
low min
4
t
high min
t
h
1
U
ti +Uhi
U
ti
Input voltage failure
Switch-on cycle
Input voltage sag
Switch-on cycle and subsequent
input voltage failure
U
D high
U
D low
U
D
0
JFET
NPN
t
U
o1
U
o1 nom
U
D high
U
D low
U
D
t
low min
4
t
h
1
0
U
D high
U
D low
U
D
0
JFET
NPN
U
o1
U
D high
U
D low
U
D
t
low min
4
U
to
3
Output voltage failure
0
I
D high
I
D low
I
D
t
0
I
D high
I
D low
I
D
t
3
2
33
U
o1 nom
U
to +Uho
Input voltage monitoring
Output voltage monitoring
11008
D-signal with respect to input and output voltage versus time:
1 Hold-up time see section Electrical Input Data.
2 With output voltage monitoring, hold-up time th = 0.
3 The signal will remain high if the D output is connected to
an external source.
4 tlow min = 100...170 ms, typically 130 ms.
Fig. 35
Relationship between Ui, Uo1, UD, Uo1/Uo nom versus time
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