参数资料
型号: BU52040HFV-TR
厂商: Rohm Semiconductor
文件页数: 6/15页
文件大小: 465K
描述: IC HALL EFFECT BIPO LATCH HVSOF5
特色产品: ROHM Hall Effect Sensor ICs
标准包装: 1
传感范围: 5mT 跳闸,-5mT 释放
类型: 双极卡锁
电源电压: 1.65 V ~ 3.3 V
电流 - 电源: 300µA
电流 - 输出(最大): ±0.5mA
输出类型: 数字,开路集电极
工作温度: -40°C ~ 85°C
封装/外壳: SOT-665
供应商设备封装: 5-HVSOF
包装: 标准包装
其它名称: BU52040HFV-DKR
BU52040HFV-DKR-ND
BU52040HFVDKR
BU52040HFV 
Technical Note
 
6/12
www.rohm.com
2010.01 - Rev.B
?2010 ROHM Co., Ltd. All rights reserved.
(Magnetic Field Detection Mechanism)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig.15
 
The IC detects magnetic fields that running horizontal to the top layer of the package. When the magnetic pole switches
from N to S, the output changes from high to low; likewise, when the magnetic pole switches from S to N, the output
changes from low to high. The output condition is held unit the next switch in magnetic polarity is detected.
 
[Operation in Continuously Changing Magnetic Fields]
 
 
Direction of magnet movement
 
 
 
N
 
 
 
 
Hall IC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig.16
 
The IC can detect a continuous switch in magnetic field (from N to S and S to N) as depicted above.
B
Brp
Bop
0
N-pole
Ma  netic flux densit mT
High
OUT [V]
Low
S-pole
Magnet
S
N
S
S
N
S
N
S
N
S
N
S
N
Bop
Brp
Magnetic field
Hall IC output
High
Low
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