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K Series with PFC Data Sheet
150 – 280 Watt AC-DC Converters
Table 6a: Output data of double-output LK models. General conditions as in table 5.
Model
Nom. output voltage
LK5320
2 × 12 V
LK5540
2 × 15 V
Unit
Characteristics
Conditions
Output 1
min typ max
Output 2
min typ max
Output 1
min typ max
Output 2
min typ
max
V o
Output voltage
V i nom , I o nom
1
11.93
12.07 11.82
12.18 14.91
15.09 14.78
15.22
V
V o BR
Overvoltage protection
15.2
15.2
19.6
19.6
(suppressor diode) 8
I o nom
Output current nom. 2
V i min – V i max
6
6
5
5
A
T C min – T C max
I oL
Output current limit
V i min – V i max
6.2
6.2
5.2
5.2
v o
Output Low frequency V i nom , I o nom
noise 3
Switching freq. BW = 20 MHz
Total incl. spikes
3
12
70
3
12
60
3
10
80
3
10
60
mV pp
? V o u
Static line regulation
V i min – V i max
±12
5
±15
5
mV
with respect to V i nom
I o nom
? V o I
Static load regulation 1
V i nom
–40
5
–50
5
(0.1 – 1) I o nom
v o d
Dynamic Voltage
V i nom ,
±100
±150
±100
±150
load deviation 4
I o1 nom ? 1 / 2 I o1 nom
/ 2 I o2 nom
t d
regulat. 3
Recovery time 4
1
0.3
0.4
ms
α vo
Temperature coefficient T C min – T C max
±0.02
±0.02
%/K
of output voltage 6
I o nom
Table 6b: Output data of double-output LK models. General conditions as in table 5.
Model
Nom. output voltage
Characteristics
Conditions
LK5660 / 5740 7
2 × 24 V / 25.68 V 7
Output 1 Output 2
min typ max
min
typ max
Unit
1
2
Same conditions for both outputs
If the output voltages are
increased above V o nom via R-
input control, option P setting,
remote sensing or option T, the
V o
Output voltage
V i nom , I o nom
1
23.86 7
24.14 7
23.64
7
24.36 7
V
output currents should be
reduced accordingly so that
V o BR
I o nom
Overvoltage protection
(suppressor diode) 8
Output current nom. 2
V i min – V i max
28.5/34 7
3 / 2.7 7
28.5/34 7
3 / 2.7 7
A
3
4
P o nom is not exceeded.
Measured according to IEC/EN
61204 with a probe annex A
See Dynamic Load Regulation
T C min – T C max
5
See Output Voltage Regulation
I oL
Output current limit
V i min – V i max
3.2
3.2
6
of Double-Output Models
For battery charger applications
Switching freq. BW = 20 MHz
v o
Output Low frequency V i nom , I o nom
noise 3
Total incl.spikes
3
10
80
3
10
60
mV pp
a defined negative temperature
coefficient can be provided by
using a temperature sensor;
see Accessories.
? V o u
? V o I
Static line regulation
with respect to V i nom 3
Static load regulation 1
V i min – V i max
I o nom
V i nom
±20
–40
5
5
mV
7
Especially designed for battery
charging using the battery
temperature sensor; see
Accessories .
(0.1 – 1) I o nom
V o1 is set to 25.68 V ±1% (R-
regulat. 3 4
/ 2 I o2 nom
v o d
t d
Dynamic Voltage
load deviation 4
Recovery time
V i nom
I o1 nom ? 1 / 2 I o1 nom
1
±100
0.3
±150
ms
8
input open).
Breakdown voltage of the
incorporated suppressor
diodes (1 mA). Exceeding
α vo
Temperature coefficient T C min – T C max
of output voltage 6 I o nom
±0.02
%/K
V o BR is dangerous for the
suppressor diodes.
BCD20001-G Rev AC, 16-Dec-2010
Page 9 of 29
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