CD5.121

CD-Series

DC/DC Converter 12V, 8A

Output voltage

nom.

12V

Adjustment range

min.

12-15V

guaranteed

max.

16.1V

at clockwise end position of potentiometer

Factory setting

12.0V

±0.2%, at full load, cold unit

Line regulation

max.

25mV

Input voltage variations between 18 to 32.4Vdc

Load regulation

max.

120mV

static value, 0A

8A

Ripple and noise voltage

max.

75mVpp

20Hz to 20MHz, 50Ohm

Output current

nom.

9.6A

at 12V, ambient < 45°C, see Fig. 5-1

nom.

8A

at 12V, ambient < 60°C, see Fig. 5-1

nom.

7.7A

at 15V, ambient < 45°C, see Fig. 5-1

nom.

6.4A

at 15V, ambient < 60°C, see Fig. 5-1

Output power

nom.

115W

for ambient temperatures < 45°C

nom.

96W

for ambient temperatures < 60°C

Short-circuit current

min.

14A

continuous current, short circuit impedance 150mOhm

max.

18A

continuous current, short circuit impedance 150mOhm

Output capacitance

typ.

6 500μF

Fig. 5-1 Output voltage vs. output current at

24Vdc input voltage, typ.

Fig. 5-2 Current limitation vs. input voltage,

(11.5V constant voltage load), typ.

Output Voltage

0

06

8

3

6

9

18V

12

15

18A

16

10

2

4

12 14

Adjustment

Range

Output Current

Output Current

9.8

15

21

27

10.0

10.2

11A

10.6

10.8

33Vdc

30

24

18

10.4

Input Voltage

Peak current capability (up to several milliseconds)

The DC/DC converter can deliver a peak current, which is higher than the specified short term current. This helps to

start current demanding loads or to safely operate subsequent circuit breakers.

The extra current is supplied by the output capacitors inside the DC/DC converter. During this event, the capacitors will

be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 21.1.

Peak current voltage dips

typ.

from 12V to 8.3V

at 16A for 50ms, resistive load

typ.

from 12V to 6.2V

at 40A for 2ms, resistive load

typ.

from 12V to 4.3V

at 40A for 5ms, resistive load

Mar. 2016 / Rev. 1.5 DS-CD5.121-EN

All parameters are specified at 12V, 8A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

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