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参数资料
型号： LKP5740-6R
厂商： POWER-ONE INC
元件分类： 电源模块
英文描述： 2-OUTPUT 250 W AC-DC PWR FACTOR CORR MODULE
封装： HEAT SINK, METAL, CASE K02, MODULE
文件页数： 6/28页
文件大小： 674K
代理商： LKP5740-6R
BCD20001-G Rev AB
Page 14 of 28
www.power-one.com
K Series with PFC Data Sheet
150 – 280 Watt AC-DC Converters
R
Vo1+
Vo1–
S–
Vext
N~
L~
Rext
R'ext
14
16
14
+
S+
Vo1+
Vo1–
S–
N~
L~
R
12
06003a
Fig. 21
Output voltage control for single-output models
Notes:
– The
R-Function
excludes
option
P
(output
voltage
adjustment by potentiometer).
If the output voltages are increased above Vo nom via R-input
control, option P setting, remote sensing, or option T, the
output currents should be reduced, so that Po nom is not
exceeded.
– With double-output models the second output follows the
value of the controlled main output.
– In case of parallel connection the output voltages should be
individually set within a tolerance of 1 – 2%.
Table 10: Rext for Vo < Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R'ext = not fitted
Vo nom = 5.1 V
Vo nom = 12 V
Vo nom = 15 V
Vo nom = 24 V
Vo [V]
Rext [k
]
Vo [V] 1
Rext [k
]
Vo [V] 1
Rext [k
]
Vo [V] 1
Rext [k
]
0.5
0.432
2
4
0.806
2
4
0.619
4
8
0.806
1.0
0.976
3
6
1.33
4
8
1.47
6
12
1.33
1.5
1.65
4
8
2
6
12
2.67
8
16
2
2.0
2.61
5
10
2.87
8
16
4.53
10
20
2.87
2.5
3.83
6
12
4.02
9
18
6.04
12
24
4.02
3.0
5.76
7
14
5.62
10
20
8.06
14
28
5.62
3.5
8.66
8
16
8.06
11
22
11
16
32
8.06
4.0
14.7
9
18
12.1
12
24
16.2
18
36
12.1
4.5
30.1
10
20
13
26
26.1
20
40
20
5.0
200
11
22
42.2
14
28
56.2
22
44
44.2
Table 10b: R’ext for Vo > Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); Rext = not fitted
Vo nom = 5.1 V
Vo nom = 12 V
Vo nom = 15 V
Vo nom = 24 V
Vo [V]
R'ext [k
]
Vo [V] 1
R'ext [k
]
Vo [V] 1
R'ext [k
]
Vo [V] 1
R'ext [k
]
5.15
432
12.1
24.2
1820
15.2
30.4
1500
24.25
48.5
3320
5.2
215
12.2
24.4
931
15.4
30.8
768
24.5
49.0
1690
5.25
147
12.3
24.6
619
15.6
31.2
523
24.75
49.5
1130
5.3
110
12.4
24.8
475
15.8
31.6
392
25.0
50.0
845
5.35
88.7
12.5
25.0
383
16.0
32.0
316
25.25
50.5
698
5.4
75
12.6
25.2
316
16.2
32.4
267
25.5
51.0
590
5.45
64.9
12.7
25.4
274
16.4
32.8
232
25.75
51.5
511
5.5
57.6
12.8
25.6
243
16.5
33.0
221
26.0
52.0
442
13.0
26.0
196
26.25
52.5
402
13.2
26.4
169
26.4
52.8
383
1
First column: Vo or Vo1; second column: double-output models with outputs in series connection
R'ext
Rext
14
16
Vo1–
Vo1+
R
Vo2–
Vo2+
12
10
8
6
4
+
–
Vo1
24 V
30 V
48 V
Co
06004a
Fig. 22
Double-output models:
Wiring of the R-input for output voltages 24 V, 30 V, or
48 V with both outputs in series. A ceramic capacitor (Co)
across the load reduces ripple and spikes.
Test Jacks
Test jacks (pin diameter 2 mm) for measuring the main
output voltage Vo or Vo1 are located at the front of the
converter. The positive test jack is protected by a series
resistor (see: Functional Description, block diagrams).
The voltage measured at the test jacks is slightly lower
than the value at the output terminals.
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