LFT61B27I 汽车开环型霍尔电流传感器
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产品说明：LFT61B27I 汽车开环型霍尔电流传感器的初、次级之间是绝缘的，可用于测量直流、交流和脉冲电流。 The LFT61B27I automotive curr...
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- 功能特性
- 性能指标
- 型号说明
- 外形结构
- 接线与应用
LFT61B27I 汽车开环型霍尔电流传感器的初、次级之间是绝缘的，可用于测量直流、交流和脉冲电流。
The LFT61B27I automotive current sensor is an 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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特点 |
● 采用开环霍尔原理
● 供电电压低
● + 5 V DC工作电源
● 电流测量范围±300A
● 工作温度范围：- 40 °C < T° < + 125 °C
● 高测量精度,高线性度
● 低温漂，低零漂
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电参数 Electrical data(Ta=25℃±5℃,RL=10KΩ,CL=10000PF) |
|
型号 Type |
LFT61B27I |
单位 Unit |
|
额定输入电流(Ipn) |
±300 |
A |
|
测量电流范围(Ip) |
±300 |
A |
|
额定输出电压 |
Vout = (VCC /5) · (V0 + 0.00667 · Ip) |
V |
|
零点电压(V0) Zero voltage |
2.5VCC±15mV @25℃±5℃ 2.5VCC±30mV @-40～125℃ |
V |
|
测量精度 measurement accuracy |
2% @25℃±5℃ 3% @-40～125℃ |
|
|
电源电压(VCC) |
4.5～5.5 |
V |
|
功耗电流 Power Consumption |
≤10 |
mA |
|
磁失调电压 |
±10 （经过±Ipn循环） |
mV |
|
响应时间 |
≤10 @100A/μS, 10%-90%，@CL=1nF(已内置1nF电容) |
uS |
|
绝缘电压 |
2.0 @ 50HZ,AC,1min |
KV |
|
应用 Applications |
l 转向助力系统
l ABS防抱死制动系统
l 转速
l 点火系统
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结构参数 Mechanical dimension(for reference only) |
l 端子定义
|
1 |
G |
电源与输出公共端 |
|
2 |
+ |
5V电源 |
|
3 |
M |
传感器输出 |
|
4 |
NC |
悬空 |
|
测试原理示意图 Schematic diagram of test principle |
开环霍尔传感器工作原理示意图
 |
|
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 adjust output amplitude of the sensor by 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
l SJ 20790-2000
l IEC 60068-2
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总体参数 General date |
|
|
数值 Value |
单位 Unit |
符号 Symbol |
|
工作温度 Operating temperature |
-40 to +125 |
ºC |
TA |
|
储存温度 Storage temperature |
-40 to +125 |
ºC |
TS |
|
毛重(约) Mass(approx) |
64 |
g |
M |
|
特性图 Characteristics chart |
输入电流-输出电压特性
current-Output Voltage characteristic
LFT61B27I 汽车开环型霍尔电流传感器的初、次级之间是绝缘的，可用于测量直流、交流和脉冲电流。
The LFT61B27I automotive current sensor is an 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.
|
测试原理示意图 Schematic diagram of test principle |
开环霍尔传感器工作原理示意图
 |
|
结构参数 Mechanical dimension(for reference only) |
l 端子定义
|
1 |
G |
电源与输出公共端 |
|
2 |
+ |
5V电源 |
|
3 |
M |
传感器输出 |
|
4 |
NC |
悬空 |
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