Input Transient Voltage Protection
A built-in suppressor diode provides effective protection
against input transients which may be caused for example
by short-circuits accross the input lines where the network
inductance may cause high energy pulses.
Table 4: Components for external circuitry to comply with
IEC/EN 61000-4-5, level 2 or ETR 283 (19Pfl1)
(48 IMS types).
Circuit Ref.
L
48 IMS 30
150 uH
100 uF, 100 V, 85 C
Table 3: Built-in transient voltage suppressor
Type
Breakdown
voltage
V
BR nom
[V]
100
Peak power
at 1 ms
P
P
[W]
600
Peak pulse
current
I
PP
[A]
4.1
C
Reverse Polarity Protection at the Input
The built-in suppressor diode also provides for reverse po-
larity protection at the input by conducting current in the re-
verse direction. An external fuse is required to limit this cur-
rent:
48 IMS 30: 3.15 A (F3.15A)
48 IMS 30
For very high energy transients as for example to achieve
IEC/EN 61000-4-5 or ETR 283 (19 Pfl1) compliance (as per
table:
Electromagnetic Immunity)
an external inductor and
capacitor are required.
04009
L
V+
C
V–
+
1
Vi+
Module
2
Vi–
Fig. 4
Example for external circuitry to comply with
IEC/EN 61000-4-5 or ETR 283 (19 Pfl1) (48 IMS 30 types).
Electrical Ouput Data
Table 5a: Output data.
Model
48IMS30-0503-9G
Conditions
min
5.00
0
5.1 V
typ max
5.20
3.5
6
+/-0.5
See Fig. 6
75
2000
3.3 V
min typ max
3.25
0
3.35
6
9
+/-0.5
+/-1
50
2000
250
1
0.02
mV
pp
uF
mV
ms
%/K
%
Unit
V
A
Characteristics
U
o1
I
o nom
I
oL
U
o
u
o1
C
o ext
u
o d
t
d
Uo
Output voltage
Output current
Current limit
1
U
i nom
,
I
o
= 0.5
I
o nom
U
i min
...U
i max
U
i nom
U
i min
...U
i max
I
o
= (0...1)
I
o nom
Line regulation
Load regulation
Output voltage noise
2
Admissible capacitive load
Dynamic
load
regulation
Voltage deviation
Recovery time
U
i nom
I
o nom
250
1
/
2
I
o nom
1
0.02
Temperature coefficient
U
o
/
T
C
48IMS30-0302-9G
U
i nom
,
I
o nom
T
C min
...T
C max
Table 5b: Output data.
Model
3.3 V
Conditions
min
3.25
0
typ max
3.35
4
6
+/-0.5
See Fig. 6
50
2000
min
1.77
0
1.8 V
typ max
1.83
5
7
+/-0.5
+/-3
50
2000
150
1
0.02
mV
pp
uF
mV
ms
%/K
%
Unit
V
A
Characteristics
U
o1
I
o nom
I
oL
U
o
u
o1
C
o ext
u
o d
t
d
Uo
Output voltage
Output current
Current limit
1
U
i nom
,
I
o
= 0.5
I
o nom
U
i min
...U
i max
U
i nom
U
i min
...U
i max
I
o
= (0...1)
I
o nom
Line regulation
Load regulation
Output voltage noise
2
Admissible capacitive load
Dynamic
load
regulation
Voltage deviation
Recovery time
U
i nom
I
o nom
250
1
/
2
I
o nom
1
0.02
1
2
U
i nom
,
I
o nom
T
C min
...T
C max
The current limit is primary side controlled.
BW = 20 MHz
Temperature coefficient
U
o
/
T
C
4/11
POWER-ONE [ POWER-ONE ]
