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LFB-D51系列闭环电流传感器的初、次级之间是绝缘的，具有抗力；用于测量直流、交流和脉动电流。
LFB-D51 series current sensor is closed loop device based on the measuring principle of the hall effect,with a galvanic isolation between primary and secondary circuit. It has strong anti-jamming ability ａnd provides accurate electronic measurement of DC, AC or pulsed currents.
| 电参数 Electrical data(Ta=25℃±5℃, RL=10KΩ, CL=10nF) |
| 型号 Type 参数 | LFB6D51 | LFB10D51 | LFB15D51 | LFB20D51 | LFB25D51 | LFB30D51 | LFB40D51 | LFB50D51 | 单位 Unit |
| 额定输入电流(Ipn) Rated input (Ipn) | 6 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | A |
| 测量电流范围(Ip) Measuring range(Ip) | ±15 | ±25 | ±37.5 | ±50 | ±62.5 | ±75 | ±100 | ±125 | A |
| 匝 比 (Np/Ns) Turns ratio(Np/Ns) | 1:1200 | 1:1000 | 1:1125 | 1:1000 | 1:1250 | 1:1125 | 1:1000 | 1:1000 | T |
| 内接取样电阻 | 40.0 | 20.0 | 15.0 | 10.0 | 10.0 | 7.5 | 5.0 | 4.0 | Ω |
| 额定输出电压 Rated output | @ Ip=±Ipn±0.8±0.5% | V | |||||||
| 输出电阻 Output resistance | ≤20 | Ω | |||||||
| 初级引脚尺寸 Size of primary pins | □ 6.28 ×1.0 | mm | |||||||
| 电源电压(Vc) Supply voltage | +5±5% | V | |||||||
| 功耗电流 Power consumption | ≤15+Ip/Ns | mA | |||||||
| 参考电压(Vref) Reference voltage | +2.5±0.5%(Output) | V | |||||||
| 参考内接电阻 Vref internal resist resistor | 200 | Ω | |||||||
| 外接参考电压范围 Vref external range resistor | 2.0-2.8(Input) | V | |||||||
| 零点电压 | @ Ip=0 +2.5±0.5% | V | |||||||
| 失调电压温漂 Offset drift | @ -40～+105℃≤±0.05 | mV/℃ | |||||||
| 输出电压温漂 | @ -40～+105℃≤±0.05 | mV/℃ | |||||||
| 线性度 Linearity | @ Ip=0-±Ipn ≤0.1 | %FS | |||||||
| 总精度 Total accuracy | ≤±1.0 | % | |||||||
| di/dt 跟随精度 accurately followed | ＞50 | A/µS | |||||||
| 响应时间 Response time | @ Ip=Ipn, 50 A/µS,10%-90%＜1.0 | µS | |||||||
| 宽带 Bandwidth | @ -1db DC～100 | KHZ | |||||||
| 绝缘电压 Galvanic isolation | @ 50HZ,AC,1min 3.0 | KV | |||||||
| 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. 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 available.
| |
l UL94-V0.
l EN60947-1:2004
l IEC60950-1:2001
l EN50178:1998
SJ 20790-2000
| 总体参数 General date |
|
| 数值 Value | 单位 Unit | 符号 Symbol |
| 工作温度 Operating temperature | -40 to +105 | ºC | TA |
| 储存温度 Storage temperature | -40 to +125 | ºC | TS |
| 毛重(约)Mass(approx) | 12 | 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
| |
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 光伏产品
Solar inverters
| 结构参数 Mechanical dimension(for reference only) |
Remarks：
1. All dimensions are in mm.
2.General tolerance ±1mm.
