CD5.121 Datasheet, PDF (6/22 Pages) PULS GmbH – DC/DC Converter 12V, 8A

CD-Series
CD5.121
DC/DC Converter 12V, 8A
5. OUTPUT
Output voltage
Adjustment range
Factory setting
Line regulation
Load regulation
Ripple and noise voltage
Output current
Output power
Short-circuit current
Output capacitance
nom.
min.
max.
max.
max.
max.
nom.
nom.
nom.
nom.
nom.
nom.
min.
max.
typ.
12V
12-15V
16.1V
12.0V
25mV
120mV
75mVpp
9.6A
8A
7.7A
6.4A
115W
96W
14A
18A
6 500μF
Fig. 5-1 Output voltage vs. output current at
24Vdc input voltage, typ.
Output Voltage
18V
15
Adjustment
Range
12
9
6
3
Output Current
0
0 2 4 6 8 10 12 14 16 18A
guaranteed
at clockwise end position of potentiometer
±0.2%, at full load, cold unit
Input voltage variations between 18 to 32.4Vdc
static value, 0A Æ 8A
20Hz to 20MHz, 50Ohm
at 12V, ambient < 45°C, see Fig. 5-1
at 12V, ambient < 60°C, see Fig. 5-1
at 15V, ambient < 45°C, see Fig. 5-1
at 15V, ambient < 60°C, see Fig. 5-1
for ambient temperatures < 45°C
for ambient temperatures < 60°C
continuous current, short circuit impedance 150mOhm
continuous current, short circuit impedance 150mOhm
Fig. 5-2 Current limitation vs. input voltage,
(11.5V constant voltage load), typ.
Output Current
11A
10.8
10.6
10.4
10.2
10.0
9.8
Input Voltage
15 18 21 24 27 30 33Vdc
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.
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