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參數(shù)資料
| 型號： | DK2540-9ERD2B2 |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 150 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE K02, MODULE |
| 文件頁數(shù)： | 21/31頁 |
| 文件大?。?/td> | 637K |
| 代理商： | DK2540-9ERD2B2 |
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Cassette Style
150 Watt DC-DC Converters
K Series
Edition 01/01.2000
28/31
Threshold tolerances and hysteresis:
If
Ui is monitored, the internal input voltage after the input
filter is measured. Consequently this voltage differs from
the voltage at the connector pins by the voltage drop
DUti
across the input filter. The threshold levels 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 depends upon the input
voltage range (CK, DK, ..), threshold level
Ut, temperature
and input current. The input current is a function of the input
voltage and the output power.
Fig. 32
Definition of Uti,
U
t i and
U
hi (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
D-signal with respect to input and output voltage versus time:
Fig. 33
Relationship between Ui, Uo1, UD, Uo1/Uo nom versus time
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
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.
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