LFA-B54系列开环型电流传感器的初、次级之间是绝缘的，可用于测量直流、交流和脉冲电流。
The LFA-B54 series current sensor is a open loop device based on the measuring principle of the halleffect,with a galvanic isolation between primary and secondary circuit.It provides accurate electronic measurement of DC,AC or pulsed currents.
| 使用说明 Directions for use |
1. 当待测电流从传感器穿过，即可在输出端测得电压大小。(注意：错误的接线可能导致传感器损坏)
When the current will be measured goes through a sensor,the voltage will be measured at the output end.
(Note: The false wiring may result in the damage of the sensor).
2. 传感器的输出幅度可根据用户需要进行适当调节。
Customs can adjustOutput amplitudeof the sensorby needs.
3. 可按用户需求定制不同额定输入电流和输出电压的传感器。
Custom design in the different rated input current and the output voltage are available.
| |
l UL94-V0.
l EN60947-1:2004
l IEC60950-1:2001
l EN50178:1998
SJ 20790-2000
| 电参数 Electrical data(Ta=25℃±5℃,RL=2KΩ,CL=10000PF) |
|
型号 Type | LFA100B54 | LFA200B54 | LFA300B54 | LFA400B54 | LFA500B54 | LFA600B54 | 单位 Unit |
| 额定输入电流(Ipn) | ±100 | ±200 | ±300 | ±400 | ±500 | ±600 | A |
| 测量电流范围(Ip) | ±300 | ±600 | ±900 | ±1000 | ±1000 | ±1000 | A |
| 额定输出电压 | @Ip=±Ipn ±4±1% | V | |||||
| 电源电压 | ±15 ±5% | V | |||||
| 功耗电流 Power Consumption | +18,-10 | mA | |||||
| 零点失调电压 | @Ip=0 ≤25 | mV | |||||
| 磁失调电压 | @Ip=±Ipn ≤±30 | mV | |||||
| 失调电压温漂 | @ -40℃～+85℃≤±0.5 | mV/℃ | |||||
| 输出电压温漂 | @ -40℃～+85℃≤±0.5 | mV/℃ | |||||
| 线性度 | @Ip=0-±Ipn ≤1 | %FS | |||||
| 响应时间 | @50A/μS, 10%-90% ≤5 | μS | |||||
| 绝缘电压 | @ 50HZ,AC,1min 3.0 | KV | |||||
| 总体参数 General date |
|
| 数值 Value | 单位 Unit | 符号 Symbol |
| 工作温度 Operating temperature | -40 to +85 | ºC | TA |
| 储存温度 Storage temperature | -40 to +125 | ºC | TS |
| 毛重(约)Mass(approx) | 79 | g | M |
| 特性图Characteristics chart |
脉冲电流信号响应特性 抗脉冲电压干扰特性
Pulse current signal response characteristicEffects of impulse noise
| 结构参数 Mechanical dimension(for reference only) |
Remarks：
1. All dimensions are in mm.
2. General tolerance ±1mm.
| 应用 Applications |
l 变频调速系统
Variable speed drives
l 电焊机
Welding machine
l 通讯电源
Battery supplied applications
l 不间断电源UPS
Uninterruptible Power Supplies (UPS)
l 电化学
Electrochemical
l 开关电源(SMPS)
Switched Mode Power Supplies(SMPS)
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