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: 26/28页
文件大小: 674K
代理商: LKP5740-6R
BCD20001-G Rev AB
Page 7 of 28
www.power-one.com
K Series with PFC Data Sheet
150 – 280 Watt AC-DC Converters
Efficiency
0.6
0.7
0.8
0
0.2
0.4
0.6
0.8
Io /Io nom
Vi = 187 V
Vi = 230 V
0.9
LKP5660-eta
Fig. 11b
Efficiency versus output current (LKP5660-7R)
Fig. 11a
Efficiency versus output current (LK4501-7R)
0.2
0.4
0.6
0.8
1
0
60
0
10
20
30
40
50
kHz
Io/Io nom
70
80
1.2
05008b
Fig. 9
Typical inverter switching frequency versus load.
The boost converter at the input stage operates with a
constant switching frequency of 100 kHz.
Hold-up Time
Fig. 10a
Hold-up time versus output power (LK4501-7R), valid for
converters with version V102 or higher.
Switching Frequency
0.5
0.6
0.7
0.8
0.9
0
0.2
0.4
0.6
0.8
Io /Io nom
LK4501-eta
Vi = 230 V
Vi = 85 V
0
40
80
120
160
ms
00.2
0.4
0.6
0.8
Io /Io nom
Vi = 230 V
Vi = 85 V
LK4501-hu-a
Fig. 10b
Hold-up time versus output power (LKP5660-7R)
0
40
80
120
160
0
0.2
0.4
0.6
0.8
1
Io/Io nom
LKP5660-hu-a
Vi = 230 V
Vi = 187 V
ms
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