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产品分类： 霍尔传感器
产品说明： LFA-B27系列开环型霍尔电流传感器的初 、次级之间是绝缘的 ，用于控制 、测量直流 、交流和脉冲电流 。
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LFA-B27系列开环型霍尔电流传感器的初、次级之间是绝缘的 ，用于控制 、测量直流、交流和脉冲电流 。
LFA-B27 series current sensor is a open loop device based on the measuring principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC,AC or pulsed currents.
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电参数 Electrical data( Ta=25 ℃ ± 5 ℃,R L =2K Ω,C L =10000PF) |
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型号 Type
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LFA50B27 |
LFA75B27 |
LFA100B27 |
LFA200B27 |
LFA300B27 |
LFA400B27 |
LFA500B27 |
LFA600B27 |
单位 Unit |
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额定输入电流(Ipn)
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±50 |
±75 |
±100 |
±200 |
±300 |
±400 |
±500 |
±600 |
A |
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测量电流范围(Ip)
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±150 |
±225 |
±300 |
±600 |
±900 |
±900 |
±900 |
±900 |
A |
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额定输出电压
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@Ip= ± Ipn ±4± 1% |
V |
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电源电压
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±15 ±5% |
V |
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功耗电流 Power Consumption |
+18,-10 |
mA |
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失调电压
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±25 |
mV |
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磁失调电压
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±30 |
±25 |
mV |
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失调电压温漂
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≤±1.5 |
≤±1.0 |
mV/℃ |
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输出电压温漂
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≤±1.5 |
≤±1.0 |
mV/℃ |
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线性度
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@Ip=0-±Ipn ≤1 |
%FS |
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响应时间
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@50A/μS, 10%-90% ≤3 |
μS |
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绝缘电压
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@ 50HZ ，AC ，1min2.5 |
KV |
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引线长度 Wire length |
650～750 |
mm |
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应用 Applications |
交流变速驱动器
AC variable speed drives
直流电机驱动静态转换器
Static converters for DC motor drives
变频调速系统
V ariable speed drives
电焊机
Power supplies for welding applications
通讯电源
Battery supplied applications
不间断电源 UPS
Uninterruptible Power Supplies (UPS)
开关电源
Switched Mode Power Supplies(SMPS)
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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 d ifferent rated input current and the output voltage are available.
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结构参数 Mechanical dimension(for reference only) |
Remarks：
1. All dimensions are in mm.
2. General tolerance ±1mm.
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l UL94-V0.
l EN60947-1:2004
l IEC60950-1:2001
l EN50178:1998
l SJ 20790-2000
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总体参数 General date |
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数值 Value |
单位 Unit |
符号 Symbol |
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工作温度 Operating temperature |
- 40 to +8 5 |
ºC |
TA |
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储存温度 Storage temperature |
- 40 to +125 |
ºC |
TS |
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毛重(约) Mass (approx) |
BS:65/BR:80 |
g |
M |
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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 characteristic Effects of impulse noise
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