Puls CD5.121 DC/DC Converter Guia De Especificação
CD5.121
CD-Series
DC/DC Converter 12V, 8A
5. O
UTPUT
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 Æ 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
0
6
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.
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 22.1.
be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 22.1.
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
Oct 2009 / Rev. 1.3 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.
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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