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HAL501 数据表(PDF) 44 Page - Micronas

部件名 HAL501
功能描述  Hall-Effect Sensor Family
PDF  48 Pages
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制造商  MICRONAS [Micronas]
网页  http://www.micronas.com
标志 MICRONAS - Micronas

HAL501 数据表(HTML) 44 Page - Micronas

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HAL 523
DATA SHEET
44
April 15. 2010; DSH000020_004EN
Micronas
4.12. HAL 523
The HAL 523 is the least sensitive unipolar switching
sensor of this family (see Fig. 4–45).
The output turns low with the magnetic south pole on
the branded side of the package and turns high if the
magnetic field is removed. The sensor does not
respond to the magnetic north pole on the branded
side.
For correct functioning in the application, the sensor
requires only the magnetic south pole on the branded
side of the package.
Magnetic Features:
– switching type: unipolar,
– low sensitivity
–typical BON: 34.5 mT at room temperature
–typical BOFF: 24 mT at room temperature
– operates with static magnetic fields and dynamic
magnetic fields up to 10 kHz
Applications
The HAL 523 is the optimal sensor for applications
with one magnetic polarity and strong magnetic fields
at the sensor position such as:
– solid-state switches,
– contactless solution to replace microswitches,
– position and end-point detection, and
– rotating speed measurement.
Fig. 4–45: Definition of magnetic switching points for
the HAL 523
Magnetic Characteristics at TJ = −40 °C to +170 °C, VDD = 3.8 V to 24 V,
Typical Characteristics for VDD = 12 V
Magnetic flux density values of switching points.
Positive flux density values refer to the magnetic south pole at the branded side of the package.
The hysteresis is the difference between the switching points BHYS = BON − BOFF
The magnetic offset is the mean value of the switching points BOFFSET = (BON + BOFF) / 2
BOFF
BON
0
VOL
VO
Output Voltage
B
BHYS
Parameter
On point BON
Off point BOFF
Hysteresis BHYS
Magnetic Offset
Unit
TJ
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
−40 °C
28
34.5
421824
307
10.5
14
−
29.3
−
mT
25
°C
28
34.5
421824
307
10.5
14
−
29.3
−
mT
140
°C
28
34.5
421824
307
10.5
14
−
29.3
−
mT
170
°C
28
34.5
421824
307
10.5
14
−
29.3
−
mT



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