PSC Series Extended Data Sheet
Positive Switching Regulators (Industrial)
REV. MAY 12, 2004
Page 3 of 13
Electrical Input Data
General Conditions:
TA = 25°C, unless TC is specified
Table 2a: Input data
Input
PSC 5A12
PSC 5A10
PSC 128
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
Unit
Vi
Operating input voltage
Io = 0 - Io nom
7
40
8
80
15
80
VDC
DVio min Min. diff. voltage Vi – Vo 1
TC min - TC max
1.9
2.9
3
Vi o
Undervoltage lock-out
6.3
7.3
Ii 0
No load input current
Io = 0, Vi min - Vi max
45
40
35
mA
Iinr p
Peak value of inrush current
Vi nom
150
250
A
tinr r
Rise time
without option L
55
5
s
tinr h
Time to half-value
40
Iinr p
Peak value of inrush current
Vi nom
250
350
A
tinr r
Rise time
with option L
25
s
tinr h
Time to half-value
125
ui RFI
Input RFI level, EN 55011/22
Vi nom, Io nom
BB
B
0.15 - 30 MHz
with option L 2
Table 2b: Input data
Input
PSC 158
PSC 248
PSC 368
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
Unit
Vi
Operating input voltage
Io = 0 - Io nom
19
80
29
80
42
80
VDC
DVio min Min. diff. voltage Vi – Vo 1
TC min - TC max
45
6 1
Vi o
Undervoltage lock-out
7.3
12
19
Ii 0
No load input current
Io = 0, Vi min - Vi max
35
40
mA
Iinr p
Peak value of inrush current
Vi nom
250
A
tinr r
Rise time
without option L
55
5
s
tinr h
Time to half-value
40
Iinr p
Peak value of inrush current
Vi nom
350
A
tinr r
Rise time
with option L
25
s
tinr h
Time to half-value
125
ui RFI
Input RFI level, EN 55011/22
Vi nom, Io nom
BB
B
0.15 - 30 MHz
with option L 2
1 The minimum differential voltage DVio min between input and output increases linearly by 0 to 1 V between TA = 46°C and 71°C
(
TC = 70°C and 95°C)
2 With additional external input capacitor Ce = 120
F/100 V (e.g. Nichicon PF series, or equivalent).
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 option L is fitted. This option is recommended in
order to prevent power line oscillations and reduce super-
imposed interference voltages. See also:
Technical Infor-
mation: Application Notes.
Vi+
Gi–
Vo+
Go–
a
b
+
04016
Fig. 2
Switching regulator with long supply lines.