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K Series with PFC Data Sheet
150 – 280 Watt AC-DC Converters
Table 7a: Output data of double-output LKP models. General conditions as in table 5.
Model
Nom. output voltage
LKP5660-7
2 × 24 V
LKP5740-7 7
2 × 25.68 V
Unit
Characteristics
Conditions
Output 1
Output 2
Output 1
Output 2
min typ max min typ max min typ max min typ
max
V o
Output voltage
V i nom , I o nom 1
23.86 7
24.14 7 23.64 7
24.36 7 25.42
25.94 25.17
26.19
V
V o BR
Overvoltage protection
28.5
28.5
34
34
(suppressor diode) 8
I o nom
Output current nom. 2
V i min – V i max
5.2
5.2
4.5
4.5
A
T C min – T C max
I oL
Output current limit
V i min – V i max
5.3
5.3
4.6
4.6
v o
Output Low frequency V i nom , I o nom
noise 3
Switching freq. BW = 20 MHz
Total incl.spikes
10
20
120
10
20
40
10
20
120
10
20
100
mV pp
? V o u
Static line regulation
V i min – V i max
±10
5
±10
5
mV
with respect to V i nom
I o nom
? V o I
Static load regulation
V i nom
– 60
5
– 80
5
(0.1 – 1) I o nom
v o d
Dynamic Voltage
V i nom
±150
±150
±150
±150
load deviation 4
I o nom ? 1 / 2 I o nom
t d
regulat. 3
Recovery time 4
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
1
2
3
4
5
6
7
6
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 output
currents should be reduced accordingly so that P o nom is not exceeded.
Measured according to IEC/EN 61204 with a probe according to annex A
See Dynamic Load Regulation
See Output Voltage Regulation of Double-Output Models
For battery charger applications, a defined negative temperature coefficient can be provided by using a temperature sensor
(see Accessories) , but we recommend choosing special battery charger models.
Especially designed for battery charging using the battery temperature sensor (see Accessories ). Similar models see table 7b.
V o1 is set to 25.68 V ±1% (R-input open).
Breakdown voltage of the incorporated suppressor diodes (1 mA). To exceed V o BR is dangerous for the suppressor diodes.
Table 7b: Other LKP models
All data not specified in this table are equal to LKP5740-7. General conditions as in table 5.
Model
Nom. output voltage
LKP 5320-6
2 × 12 V
LKP5661-5 2
2 × 24 V
LKP5741-5 3
2 × 25.68 V
Unit
Characteristics
Conditions
Output 1
Output 2
Output 1, 2
Output 1, 2
min
typ
max min typ max
min
typ
max min
typ
max
I o nom
Output current nom .
V i min – V i max
10
10
5.8
5
A
T C min – T C max
I oL
T A max
Output current limit 1
Max. operating temp.
V i min – V i max
10.2
60
10.2
6.0
50
5.2
50
°C
1
2
3
Both outputs series connected
All other data see LKP5660-7
All other data see LKP5740-7 (battery charger)
BCD20001-G Rev AC, 16-Dec-2010
Page 10 of 29
www.power-one.com
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