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参数资料
| 型号： | LOK4001-2RLDK |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 9/12页 |
| 文件大小： | 210K |
| 代理商： | LOK4001-2RLDK |
SEP 09, 2005 revised to JUL 17, 2006
Page 6 of 12
www.power-one.com
LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
Cell voltage [V]
–20
–10
0
10
20
30
40
50 °C
06123a
VC = 2.27 V, –3 mV/K
VC = 2.27 V, –3.5 mV/K
VC = 2.23 V, –3 mV/K
VC = 2.23 V, –3.5 mV/K
Vo nom
Vo max
Table 4: Output Voltage OK signal
Conditions
LOK4001-2RLD
LOK4140-2RLD
LOK4240-2RLD
LOK4740-2RLD
Unit
min
max
min
max
min
max
min
max
Vo t
setting
4.4
4.8
10.5
11.5
21
23
42
46
V
VD
Vo - Vo t min
60
Vo > Vo t max
0.6
I D < 50 mA
Auxiliary Functions
Adjustable Output Voltage (R input)
As a standard feature, the LOK units offer adjustable output
voltage by using the control input R. If the R pin is left open-
circuit, the output voltage is set to Vo nom. (see: Output data)
The R input is referenced to the secondary side of the
converter. Adjustment of the output voltage is possible by
means of either an external resistor or a voltage source.
a) Adjustment by means of an external resistor Rext1:
Depending upon the value of the required output voltage, the
resistor shall be connected
either: Between the R terminal and Vo– to achieve an output
voltage adjustment range of approximately
Vo = 90 - 100 % Vo nom.(LOK4301, 4601 and 4801 types)
Vo
Rext1
≈ 4 k –––––––––
Vo nom – Vo
or: Between the R terminal and Vo+ to achieve an output
voltage range of approximately Vo = 100 - 110% Vo nom for
rectifier versions and 100 - 125% Vo nom for battery chargers.
(Vo – 2.5 V)
Rext2
≈ 4 k –––––––––––––––––––
2.5 V (Vo/Vo nom – 1)
R
Vo+
Vo-
+
V
ext
-
4 k
Vref = 2.5 V
control
circuit
L
N
R
ext1
R
ext 2
06029
b) Adjustment by means of an external voltage Vext between
Vo– and R terminal to achieve an output voltage adjustment
range of approx. 90 - 110% Vo nom (LOK 4301, 4601 and
4801 types), 93 - 117% Vo nom for battery chargers.
Vo 2.5 V
Vext
≈ –––––––––
Vo nom
Attempting to adjust the output below this range will cause
the converter to shut down (hiccup mode).
Note: Applying an external control voltage >3 V may damage the
converter.
Fig. 6
Voltage setting by a temperature sensor, wiring diagram
+
–
Battery
Vo+
R
Vo–
Temperature
sensor
Sensor
cable
Sensor
wires
+
05174a
green
brown
white
Fuse
–
Fig. 7
Float charge voltage for defined temperature coefficients.
Output Voltage OK (D Output)
The D-output is referenced to Vo– and monitors the output
voltage Vo. If Vo drops below Vo t, the D-output will be disabled
(open-collector circuit). The circuitry works independently of the
input voltage and can therefore be used as battery-low indicator.
Battery Charging/Temperature Sensor
The LOK 4140/4240/4740 are designed to charge lead-acid
batteries. For optimum battery charging and extended life time
of the battery an external temperature sensor may be
connected to the R-input. The sensor should be mounted as
close as possible to one of the poles of the battery.
Depending upon the cell voltage and the temperature coefficient
of the battery, different temperature sensors are available. For
more information please see: Temperature Sensors (Accessory
Products on the Web Site) or contact Power-One.
If no sensor is used, the float charge voltage should be
adjusted with a suitable resistor connected to the R input (see:
Adjustable Output Voltage).
Fig. 5
Output voltage control by means of the R-input
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LOK4140-2RLD | 功能描述:DC/DC转换器 DIN Rail 49W (12.84V) Battery Charger RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| LOK4140-2RLDG | 制造商:Power-One 功能描述:DIN RAIL FLOAT CHARGER 50W 12V |
| LOK4140-2RLD-G | 功能描述:DIN导轨式电源 50W 12-15V Btry Chgr O-DIN-RAIL MOUNT RoHS:否 制造商:Mean Well 产品:Linear Supplies 商用/医用:Commercial 输出功率额定值:960 W 输入电压:180 VAC to 264 VAC, 254 VDC to 370 VDC 输出端数量:1 输出电压（通道 1）:48 V 输出电流（通道 1）: 输出电压（通道 2）: 输出电流（通道 2）: 输出电压（通道 3）: 输出电流（通道 3）: 尺寸:150 mm L x 110 mm W |
| LOK4240-2RLD | 功能描述:DC/DC转换器 DIN Rail 49W (25.7V) Battery Charger RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| LOK4240-2RLDG | 制造商:Power-One 功能描述:DIN RAIL FLOAT CHARGER 50W 24V |
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