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HAL556SF-A 参数 Datasheet PDF下载

HAL556SF-A图片预览
型号: HAL556SF-A
PDF下载: 下载PDF文件 查看货源
内容描述: 双线霍尔效应传感器系列 [Two-Wire Hall Effect Sensor Family]
分类和应用: 传感器
文件页数/大小: 21 页 / 223 K
品牌: MICRONAS [ MICRONAS ]
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HAL566  
4.3. HAL566  
Applications  
The HAL566 is a very sensitive unipolar switching  
sensor with an inverted output (see Fig. 4–9).  
The HAL566 is designed for applications with one mag-  
netic polarity and weak magnetic amplitudes at the sen-  
sor position where an inverted output signal is required  
such as:  
The sensor turns to low current consumption with the  
magnetic south pole on the branded side of the package  
and turns to high current consumption if the magnetic  
field is removed. It does not respond to the magnetic  
north pole on the branded side.  
– applications with large airgap or weak magnets,  
– solid state switches,  
– contactless solutions to replace micro switches,  
– position and end point detection, and  
– rotating speed measurement.  
For correct functioning in the application, the sensor re-  
quires only the magnetic south pole on the branded side  
of the package.  
In the HAL55x, HAL56x two-wire sensor family, the  
HAL556 is a sensor with the same magnetic character-  
istics but with a normal output characteristic.  
Current consumption  
I
DDhigh  
B
HYS  
Magnetic Features:  
– switching type: unipolar inverted  
– high sensitivity  
I
DDlow  
– typical B : 4 mT at room temperature  
ON  
0
B
ON  
B
OFF  
B
– typical B  
: 5.9 mT at room temperature  
OFF  
Fig. 4–9: Definition of magnetic switching points for  
the HAL566  
– operates with static magnetic fields and dynamic mag-  
netic fields up to 10 kHz  
Magnetic Characteristics at T = –40 °C to +170 °C, V = 4 V to 24 V,  
J
DD  
Typical Characteristics for V = 12 V  
DD  
Magnetic flux density values of switching points.  
Positive flux density values refer to the magnetic south pole at the branded side of the package.  
Parameter  
On point B  
Typ.  
Off point B  
Hysteresis B  
HYS  
Magnetic Offset  
Unit  
ON  
OFF  
T
J
Min.  
2.1  
2
Max.  
5.9  
5.7  
5.7  
6
Min.  
Typ.  
Max.  
7.7  
7.2  
7
Min.  
Typ.  
Max.  
Min.  
Typ.  
Max.  
–40 °C  
4
3.4  
3.4  
3.25  
2.6  
2.2  
6
0.8  
0.5  
0.3  
0.2  
0.2  
2
2.8  
2.7  
2.6  
3
5
mT  
mT  
mT  
mT  
mT  
25 °C  
100 °C  
140 °C  
170 °C  
3.9  
3.8  
3.6  
3.4  
5.9  
5.6  
5.2  
4.8  
2
3
4.9  
4.7  
4.4  
4.1  
6.2  
1.85  
1.3  
1
1.8  
1.6  
1.4  
7.3  
7.6  
6.3  
3
The hysteresis is the difference between the switching points B  
= B  
– B  
OFF ON  
HYS  
The magnetic offset is the mean value of the switching points B  
= (B + B ) / 2  
OFFSET  
ON  
OFF  
Changes to the previous edition:  
– specification for 140 °C and 170 °C added  
16  
Micronas  
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