IMS 7-Series
DC-DC Converters <40 Watt
Industrial Environment
Edition 5/9.99
10/15
MELCHER
The Power Partners.
07023
EN 55022 A
EN 55022 B
90
80
70
60
50
40
30
20
10
0
.01
0
.05
0.1
0.5
1
2
5
10
20
30
[dB
V]
MHz
0
.02
40
35
30
25
20
15
10
0
30
40
50
100
200
300
1000
60
80
[MHz]
EN 55022 B
[dB
V/m]
400
500
600
800
07024
Electromagnetic Emission
Conducted RFI noise at input according to EN 55022
Radiated RFI noise according to EN 55022.
Electromagnetic Immunity
Table 8: Immunity type tests
Phenomenon
Standard 1
Class
Coupling
Value
Waveform
Source
Test
In
Per- 3
Level
mode 2
applied
Imped.
procedure
oper. form.
Electrostatic
IEC/EN
2
contact discharge
4000 Vp
1/50 ns
330
10 positive and
yes
B
discharge
61000-4-2
R pin open
10 negative
to case
i pin connec. to Vi–
discharges
3
air discharge
8000 Vp
R pin open
i pin connec. to Vi–
Electromagnetic
IEC/EN
2
antenna
3 V/m
AM 80%
26…1000 MHz
yes
A
field
61000-4-3
1 kHz
ENV 50204
PM, 50% duty
900 MHz
cycle, 200 Hz
resp. frequ.
Electrical fast
IEC/EN
3
direct +i/–i
2000 Vp
bursts of 5/50 ns
50
1 min positive
yes
B
transient/burst
61000-4-4
5 kHz rep. rate
1 min negative
transients with
transients per
15 ms burst
coupling mode
duration and a
300 ms period
Surge
IEC/EN
2
+i/–i
1000 Vp
1.2/50
s2
5 pos. and 5 neg.
yes
B
61000-4-5 5
impulses per
coupling mode
Conducted
IEC/EN
2
+i/–i3 Vrms
AM modulated
50
0.15...80 MHz
yes
A
disturbancies
61000-4-6
(130 dB
V)
80%, 1 kHz
150
Transient
19 Pfl 1 4
+i/–i
150 Vp
0.1/0.3 ms
limited to
3 positive
yes
B
<100 A
1 Related and previous standards are referenced in Technical Information: Standards.
2 i = input, o = output.
3 A = normal operation, no deviation from specification, B = temporary deviation from specs. possibe.
4 For 48 IMS 7 types (additional external components required). Not applicable for 24 IMS 7 types.
5 External components required.
which typically occur in many installations, but especially in
battery driven mobile applications.
Electromagnetic Compatibility (EMC)
A suppressor diode together with an input filter form an ef-
fective protection against high input transient voltages
Fig. 18
Typical disturbance voltage (quasi-peak) at the input ac-
cording to CISPR 11/EN 55011 and CISPR 22/EN 55022
measured at Ui nom and Io nom. Output leads 0.1 m, twisted.
(48 IMS 7-15-15-7).
Fig. 19
Typical radio frequency-interference voltage at Ui nom,
Io nom, measured with an antenna (distance 10 m). Output
leads 0.1 m, twisted (48 IMS-7-15-15-7).