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BCD20009-G Rev F, 20-Nov-2020

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IMX35 Series

35 Watt Quad-Output DC-DC Converter

© 2020 Bel Power Solutions & Protection

Description

The IMX35 Series of board-mountable, 35 Watt DC-DC converters has been designed according to the latest industry requirements

and standards. The converters are particularly suitable for use in mobile or stationary applications in transport, railways, industry,

or telecommunication, where variable input voltages or high transient voltages are prevalent.

Covering a total input voltage range from 9 V up to 150 V with 4 different models, the converters are available with up to four

electrically isolated outputs from 5 V to 60 V, externally adjustable and with flexible load distribution. A shutdown input allows

remote converter on/off. Features include consistently high efficiency over the entire input voltage range, high reliability, and

excellent dynamic response to load and line changes.

The converters are designed and built according to the international safety standards IEC/EN 62368-1 3rd edition, and approved

by Nemko. The converters provide basic insulation.

The circuit is comprised of 2 planar magnetics devices, and all components are automatically assembled and securely soldered

onto a single PCB board without any wire connection. Magnetic feedback ensures maximum reliability and repeatability in the

control loop over all operating conditions. Careful considerations of possible thermal stresses ensure the absence of hot spots

providing long life in environments, where temperature cycles are present. The thermal design without using any potting material

allows operation at full load up to an ambient temperature of 71 °C in free air and operation up to 105 °C with airflow. For extremely

high vibration environments the case has holes for screw mounting.

Model Selection

Table 1: Model Selection

Output 1

Output 2

Output 3

Output 4

Input voltage

Model

V

o nom

[VDC]

I

o nom

[mA]

V

o nom

[VDC]

I

o nom

[mA]

V

o nom

[VDC]

I

o nom

[mA]

V

o nom

[VDC]

I

o nom

[mA]

V

[VDC]

η

min

[%]

η

max

[%]

5

5

5

5

1.35

1.4

1.4

1.4

5

5

5

5

1.35

1.4

1.4

1.4

5

5

5

5

1.35

1.4

1.4

1.4

5

5

5

5

1.35

1.4

1.4

1.4

9 to 36

18 to75

40 to 121

82.5

82

83

82

84.5

84

85

84

20IMX35D05D05-8G

40IMX35D05D05-8G

70IMX35D05D05-8G

110IMX35D05D05-8G

i,

Z,

non-G

12

12

12

12

0.65

0.7

0.7

0.7

12

12

12

12

0.65

0.7

0.7

0.7

12

12

12

12

0.65

0.7

0.7

0.7

12

12

12

12

0.65

0.7

0.7

0.7

9 to 36

18 to75

40 to 121

83.5

83.5

84.5

84

85.5

85.5

86.5

86

20IMX35D12D12-8G

40IMX35D12D12-8G

70IMX35D12D12-8G

110IMX35D12D12-8G

15

15

15

15

0.55

0.6

0.6

0.6

15

15

15

15

0.55

0.6

0.6

0.6

15

15

15

15

0.55

0.6

0.6

0.6

15

15

15

15

0.55

0.6

0.6

0.6

9 to 36

18 to75

40 to 121

84

83.5

84

83

86

85.5

86

85

20IMX35D15D15-8G

40IMX35D15D15-8G

70IMX35D15D15-8G

110IMX35D15D15-8G

5

5

5

5

1.35

1.4

1.4

1.4

12

12

12

12

0.65

0.7

0.7

0.7

12

12

12

12

0.65

0.7

0.7

0.7

5

5

5

5

1.35

1.4

1.4

1.4

9 to 36

18 to75

40 to 121

84

84

84

83.5

86

86

86

85.5

20IMX35D05D12-8G

40IMX35D05D12-8G

70IMX35D05D12-8G

110IMX35D05D12-8G

5

5

5

5

1.35

1.4

1.4

1.4

15

15

15

15

0.55

0.6

0.6

0.6

15

15

15

15

0.55

0.6

0.6

0.6

5

5

5

5

1.35

1.4

1.4

1.4

9 to 36

18 to75

40 to 121

83.5

83.5

84

84

85.5

85.5

86

86

20IMX35D05D15-8G

40IMX35D05D15-8G

70IMX35D05D15-8G

110IMX35D05D15-8G

1

Efficiency at T

2

154 V for 2 s.

Product Marking

Converters without option Z are marked with type designation, input and output voltages and currents, applicable safety approval

and recognition marks, company logo, production date, and serial no.