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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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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.
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 ± 3 00A
● 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
电参数 Electrical data( Ta=25 ℃ ± 5 ℃ ,R L =10K Ω ,C L =10000PF) |
型号
Type
|
LFT61B27 I |
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
|
V out = ( VCC /5) · ( V0 + 0.0 0667 · I p ) |
V |
零点电压 (V0) Zero voltage |
2.5 VCC ± 15mV @25 ℃± 5 ℃ 2.5 VCC ± 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/ μ S, 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
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
总体参数 General date |
|
数值 Value |
单位 Unit |
符号 Symbol |
工作温度 Operating temperature |
-40 to +125 |
º C |
TA |
储存温度 Storage temperature |
-40 to +125 |
º C |
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
LFT61B27 I 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 LFT61B27 I 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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