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参数资料
| 型号： | PSC249-2I |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 3/8页 |
| 文件大小： | 363K |
| 代理商： | PSC249-2I |
Benign Environment
Switching Regulators, PCB & Chassis
PSC Series
Edition 4/4.99
3/8
MELCHER
The Power Partners.
Electrical Input Data
General Conditions:
TA = 25°C, unless TC is specified
Table 2a: Input data
Input
PSC 3E12
PSC 5A11
PSC 129
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
Unit
Ui
Operating input voltage
Io = 0...Io nom
6
40
8
40
15
40
V DC
DUio min Min. diff. voltage Ui – Uo
TC min...TC max
2.7
2.9
3
Ui o
Undervoltage lock-out
4.7
7.3
Ii 0
No load input current
Io = 0, Ui min...Ui max
50
mA
Iinr p
Peak value of inrush current
Ui nom
150
A
tinr r
Rise time
5
s
tinr h
Time to half-value
40
ui RFI
Input RFI level, EN 55011/22
Ui nom, Io nom
AA
A
0.01...30 MHz 1
Table 2b: Input data
Input
PSC 159
PSC 249
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
Ui
Operating input voltage
Io = 0...Io nom
19
40
29
60
V DC
DUio min Min. diff. voltage Ui – Uo
TC min...TC max
45
Ui o
Undervoltage lock-out
7.3
12
Ii 0
No load input current
Io = 0, Ui min...Ui max
50
mA
Iinr p
Peak value of inrush current
Ui nom
250
A
tinr r
Rise time
5
s
tinr h
Time to half-value
40
ui RFI
Input RFI level, EN 55011/22
Ui nom, Io nom
AA
0.01...30 MHz 1
1 Additional external input filter or capacitor necessary.
External Input Circuitry
The sum of the lengths of the supply lines to the source or
to the nearest capacitor
≥100 F (a + b) should not exceed
5 m unless an external input filter with capacitor is fitted.
This filter is recommended in order to prevent power line
oscillations and reduce superimposed interference vol-
tages. See also:
Technical Information: Application Notes.
Vi+
Gi–
Vo+
Go–
a
b
+
04016
Fig. 2
Switching regulator with long supply lines.
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