参数资料
型号: LS2540-7EPD0B1
厂商: POWER-ONE INC
元件分类: 电源模块
英文描述: 2-OUTPUT AC-DC REG PWR SUPPLY MODULE
封装: METAL, CASE S02, MODULE
文件页数: 21/33页
文件大小: 438K
代理商: LS2540-7EPD0B1
S Series Data Sheet
100 Watt AC-DC and DC-DC Converters
APR 26, 2006 revised to SEP 25, 2006
Page 28 of 33
www.power-one.com
D-signal with respect to input and output voltage versus time:
Fig. 34
Relationship between Vi, Vo1, VD, Vo1/Vo nom versus time
0
1
0.95
0
V
i [V DC]
0
t
low min
4
t
low min
4
t
high min
t
h
1
V
ti +Vhi
V
ti
Input voltage failure
Switch-on cycle
Input voltage sag
Switch-on cycle and subsequent
input voltage failure
V
D high
V
D low
V
D
0
JFET
NPN
t
V
o1
V
o1 nom
V
D high
V
D low
V
D
t
low min
4
t
h
1
0
V
D high
V
D low
V
D
0
JFET
NPN
V
o1
V
D high
V
D low
V
D
t
low min
4
V
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
V
o1 nom
V
to +Vho
Input voltage monitoring
Output voltage monitoring
11008
1 Hold-up time see: 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 = typically 130 ms.
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