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REV.: 0/2019

RBB-6

DC/DC Converter

RBBA3000

Series

SAFETY AND CERTIFICATIONS

Certificate Type (Safety)

Report / File Number

Standard

RoHS2

RoHS 2011/65/EU + AM2015/863

EMC Compliance

Condition

Standard / Criterion

Electromagnetic compatibility of multimedia equipment - Emission requirements

with external filter

(see suggestion below)

EN55032, Class A and B

Information technology equipment - Immunity characteristics - Limits and

methods of measurement

EN55024

DIMENSION AND PHYSICAL CHARACTERISTICS

Parameter

Type

Value

Material

baseplate

case

potting

aluminium

plastic

low smoke silicone

Dimension (LxWxH)

60.60 x 63.2 x 13.0mm

Weight

155g typ.

continued on next page

EMC Filtering Suggestions according to EN55032

L1

C1

C3

C5

C2

C4

+V

out

-V

out

+V

in

-V

in

F

Component List Class A and B

C1

L1

C2

C3

C4

C5

2.2µF/100V MLCC

4pcs

3.3µH/100A

1pc

470µF/100V E-Cap

1pc

2.2µF/100V MLCC

18pcs

470µF/100V E-Cap

1pc

2.2uF/100V MLCC

4pcs

Thermal Calculation:

T

T

P

P

=

P

out

- P

out

η

T

base max.

= max. baseplate temperature [°C]

T

over

= temperature losses

[°C]

T

amb

= ambient temperature

[°C]

P

out

= output power

[W]

η

= efficiency (see graph)

[%]

P

diss

= internal losses

[W]

R

th

= thermal impedance

[K/W]

T

base max

= 110°C

P

out

= 1k2W

η

= 96%

R

th

T

T

1.2 x 50 =

60K

P

1k2

- 1k2 =

50W

0.96

Practical Example:

Take the

RBBA3000-50 with 48V Input Voltage, 24V Output Voltage, 50A Output Current:

What is the maximum ambient operating temperature?