CD5.121

CD-Series

DC/DC Converter 12V, 8A

Input voltage

nom.

DC 24V

Input voltage range

18.0-32.4Vdc

full specified

14.4-18.0Vdc

maximal 60 seconds or with de-rating see Fig. 3-2

max.

36.0Vdc

absolute maximum continuous input voltage with no

damage to the DC/DC converter

Allowed voltage between input

and earth

max.

60Vdc or

42.2Vac

in case the output voltage is not grounded.

Allowed input ripple voltage

max.

5Vpp

47Hz-500Hz, the momentary input voltage must always

be within the specified limits.

Turn-on voltage

typ.

17.5Vdc

steady-state value, see Fig. 3-1

Shut-down voltage

typ.

14.0Vdc

steady-state value, see Fig. 3-1

typ.

35.0Vdc

steady-state value, see Fig. 3-1

Input current

typ.

4.6A

at 24Vdc input and output 12V, 8A, see Fig. 3-4

Start-up delay

typ.

420ms

see Fig. 3-3

Rise time

typ.

210ms

0mF, 12V, constant current load 5A, see Fig. 3-3

typ.

240ms

8mF, 12V, constant current load 5A, see Fig. 3-3

Turn-on overshoot

max.

500mV

see Fig. 3-3

Input capacitance

typ.

3 000μF

external capacitors on the input voltage bus are allowed

without any limitations.

Fig. 3-1 Input voltage range

Fig. 3-2 Allowable output current below 18V

input voltage

V

IN

P

OUT

Rated input range

0

2

4

6

8

10A

14

16

18

20

24Vdc

Input Voltage

Output Current

22

(a)

(b)

(a) Ambient < 45°C

(b) Ambient < 60°C

Fig. 3-3 Turn-on behavior, definitions

Fig. 3-4 Input current vs. output load

Start-up

delay

Rise

Time

- 5%

Output

Voltage

Input

Voltage

10A

1

23

5

7

0

2

4

6

8A

9

Output Current

4

6

8

Inp

ut:

24V

dc

Input

Current,

typ.

Inp

ut

: 1

8V

dc

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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