24IMS7-03-9 查看數據表（PDF） - Bel Fuse Inc.
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24IMS7-03-9 Datasheet PDF : 14 Pages
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IMX7, IMS7 Series Data Sheet
7-Watt DC-DC Converters
Electromagnetic Compatibility (EMC)
A suppressor diode together with an input filter form an
effective protection against high input transient voltages, which
typically occur in many installations, but especially in battery-
driven mobile applications.
Electromagnetic Immunity
Table 8: Immunity type tests
Phenomenon Standard
Electrostatic
discharge
to case 5
Electromagnetic
field
IEC/EN
61000-4-2
IEC/EN
ENV 50204
Electrical fast IEC/EN
transients/burst 61000-4-4
Surges
RF conducted
immunity
IEC/EN
61000-4-5
IEC/EN
61000-4-6
Class
level
Coupling
mode 1
2 contact discharge
Value
applied
4000 Vp
Waveform
1/50 ns
Source
imped.
330 Ω
3
air discharge
8000 Vp
36
antenna
10 V/m
AM 80%
n.a.
23
3 V/m 3
1 kHz
3
antenna
10 V/m PM, 50% duty n.a.
23
3 V/m 3 cycle, 200 Hz
repetition frequ.
4
direct +i/–i
4000 Vp bursts of 5/50 ns 50 Ω
33
2000 Vp 3 5 kHz repet. rate,
transients with
15 ms burst
duration, and
300 ms period
24
+i/–i
1000 Vp
1.2/50 µs
42 Ω
13 4
500 Vp 3
0.5 µF
3
+i /–i
10 VAC AM modul. 80% 50 Ω
23
3 VAC
1 kHz
Test
procedure
10 positive and
10 negative
discharges
80 – 1000 MHz
900 MHz
60 s positive,
60 s negative
transients per
coupling mode
5 pos. and 5 neg.
surges
0.15 to 80 MHz
150 Ω
In Perf-
oper. crit.2
yes B
yes A
yes A
yes B
yes B
yes A
1 i = input, o = output
2 Performance criterion: A = normal operation, no deviation from specifications, B = temporary deviation from specs possible
3 Valid for 24IMS7 and 48IMS7
4 External components required
5 R or Trim pin open, i pin connected with Vi–
6 Corresponds to the railway standard EN 50121-3-2:2000, table 9.1
Electromagnetic Emissions
dbµV
80
60
PMM 8000 PLUS
Name: 20_7_15
Date: 5.9.07
Time: 08:18
20IMX7-15-15-8 Peak
EN 55022 A
dbµV
80
60
PMM 8000 PLUS
Name: 40_7_24
Date: 5.9.07
Time: 08:00
40IMX7-24-24-8 Peak
EN 55022 A
40
40
20
20
0
0.2 0.5
1
2
5 10 20 MHz
0
0.2 0.5
1
2
5 10 20 MHz
Fig. 14a
20IMX7-15-15-8: Typical conducted emissions (peak) at the
input at Vi nom and Io nom according to EN 55011/22. Output
leads 0.1 m, twisted. External input capacitor (1 µF ceramic +
100 µF electrolytic cap)
Fig. 14b
40IMX7-24-24-8: Typical conducted emissions (peak) at the
input at Vi nom and Io nom according to EN 55011/22. Output
leads 0.1 m, twisted. External input capacitor (1 µF ceramic +
47 µF electrolytic cap)
BCD20007-G Rev AF, 31-Jul-2015
MELCHER
The Power Partners.
Page 11 of 14
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