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参数资料
| 型号： | LW010BK |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | 50.80 X 25.40 MM, 10.20 MM HEIGHT, LOW PROFILE, MODULE-6 |
| 文件页数： | 7/24页 |
| 文件大小： | 567K |
| 代理商： | LW010BK |
Lucent Technologies Inc.
15
Data Sheet
August 1998
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W
LC/LW010- and LC/LW015-Series Power Modules:
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. If the source inductance exceeds 4
H, a 33 F
electrolytic capacitor (ESR < 0.7
at 100 kHz)
mounted close to the power module helps ensure
stability of the unit.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e.,
UL 1950, CSA 22.2 No. 950-95, EN60950, and
IEC950.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), one of
the following must be true of the dc input:
s
All inputs are SELV and oating, with the output also
oating.
s
All inputs are SELV and grounded, with the output
also grounded.
s
Any non-SELV input must be provided with rein-
forced insulation from any other hazardous voltages,
including the ac mains, and must have a SELV reli-
ability test performed on it in combination with the
converters.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
Feature Descriptions
Output Overvoltage Clamp
The output overvoltage clamp consists of control cir-
cuitry, independent of the primary regulation loop, that
monitors the voltage on the output terminals. This con-
trol loop has a higher voltage set point than the primary
loop (see Feature Specications table). In a fault condi-
tion, the overvoltage clamp ensures that the output
voltage does not exceed VO, clamp, max. This provides a
redundant voltage-control that reduces the risk of
output overvoltage.
Current Limit
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specied range.
Remote On/Off (Optional)
Two remote on/off options are available. Positive logic,
device code sufx “4”, remote on/off turns the module
on during a logic-high voltage on the remote ON/OFF
pin, and off during a logic low. Negative logic, device
code sufx “1”, remote on/off turns the module off dur-
ing a logic high and on during a logic low.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the VI(–) terminal (Von/off). The
switch may be an open collector or equivalent (see
maximum Ion/off during a logic low is 1 mA. The switch
should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum Von/off generated by
the power module is 10 V. The maximum allowable
leakage current of the switch at Von/off = 10 V is 50
A.
The module has internal capacitance to reduce noise
at the ON/OFF pin. Additional capacitance is not gen-
erally needed and may degrade the start-up character-
istics of the module.
8-758(C).a
Figure 38. Remote On/Off Implementation
+
Ion/off
–
Von/off
REMOTE
ON/OFF
VI(+)
VI(–)
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| LW010BK81 | 功能描述:DC/DC转换器 12V/-12V 0.42A 10W 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: |
| LW010BZ | 功能描述:DC/DC转换器 36-75Vin 12Vout 10W 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: |
| LW010C | 功能描述:CONVERTER DC/DC 15V 10W OUT RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:LW010 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:42V 电压 - 输入（最大）:60V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:150W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-SlimMod 尺寸/尺寸:4.60" L x 1.80" W x 0.52" H（116.8mm x 45.7mm x 13.2mm） 包装:散装 工作温度:-55°C ~ 85°C 效率:* 电源（瓦特）- 最大:* |
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