Puls CD5.121 DC/DC Converter Техническое Руководство
CD5.121
CD-Series
DC/DC Converter 12V, 8A
3. I
NPUT
V
OLTAGE
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
damage to the DC/DC converter
Allowed voltage between input
and earth
and earth
max. 60Vdc
or
42.2Vac
in case the output voltage is not grounded.
Allowed input ripple voltage
max.
5Vpp
47Hz-40kHz, the momentary input voltage must always
be within the specified limits.
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
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
Input capacitance
typ.
3 000μF
external capacitors on the input voltage bus are allowed
without any limitations.
without any limitations.
Fig. 3-1 Input voltage range
Fig. 3-2 Allowable output current below 18V
input voltage
Tur
n
-o
n
17.
5
V
dc
V
IN
P
OUT
S
hut
-do
w
n
32.
4
V
dc
14.
0
V
dc
18.
0
V
dc
Rated input range
35.
0
V
dc
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
(b) Ambient < 60°C
Fig. 3-3 Turn-on behavior, definitions
Fig. 3-4 Input current vs. output load
Start-up
delay
Rise
Time
Ov
ersh
oot
- 5%
Output
Voltage
Voltage
Input
Voltage
Voltage
10A
1
2
3
5
7
0
2
4
6
8A
9
Output Current
4
6
8
Inp
ut:
24
Vd
c
Input
Current,
typ.
Current,
typ.
Inp
ut
: 1
8V
dc
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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