IMX4 Series Data Sheet

4 Watt DC-DC Converters

BCD20006-G Rev AE, 16-Sep-2015

Page 8 of 12

MELCHER

The Power Partners.

Fig. 14

Efficiency versus input voltage and load.

Typical values (40IMX4-1212).

Fig. 13

Flexible load distribution on dual outputs (2

×12 V) with

40

50

60

70

80

90

η [%]

05060a

25

50

75

100

[%]

Electromagnetic Compatibility (EMC)

Electromagnetic Immunity

Table 8: Immunity type tests

Phenomenon

Standard

Class

Coupling

Value

Waveform

Source

Test

In

Per-

level

mode

applied

imped.

procedure

Electrostatic

IEC/ EN

2

contact discharge

1/50 ns

330

Ω

10 positive and

yes

B

discharge

61000-4-2

3

air discharge

10 negative

to case

discharges

Electromagnetic IEC/ EN

antenna

10 V/m

AM 80%

n.a.

80 – 1000 MHz

yes

A

field

61000-4-3

1 kHz

3

antenna

10 V/m

PM, 50% duty

n.a.

900 MHz

yes

A

cycle, 200 Hz

repetition frequ.

Electrical fast

IEC/ EN

4

direct +i/–i

bursts of 5/50 ns

50

Ω

60 s positive

yes

B

transients/burst

61000-4-4

5 kHz repet. rate,

60 s negative

15 ms burst,

coupling mode

300 ms period

Surges

IEC/ EN

+i/–i

1.2/50 µs

2

Ω

5 pos. and 5 neg.

yes

B

61000-4-5

surges

RF conducted

IEC/ EN

3

+i /–i

3 VAC

AM 80%

50

Ω

0.15 to 80 MHz

yes

A

immunity

61000-4-6

(140 dBµV)

1 kHz

150 W

1

i = input, o = output

2

Performance criterion: A = normal operation, no deviation from specifications, B = temporary loss of function or deviation from specs.

3

Corresponds to the railway standard EN 50121-3-2:2000, table 9.1

4

External components required.

05059b

12.8

12.4

12

11.6

11.2

030

60

90

120