S-5717ANDL8-I4T1U Datasheet, PDF (10/19 Pages) Seiko Instruments Inc – UNIPOLAR DETECTION TYPE HALL IC

LOW VOLTAGE OPERATION BOTH POLES / UNIPOLAR DETECTION TYPE HALL IC
S-5717 Series
Rev.1.0_01
 Operation
1. Direction of applied magnetic flux
The S-5717 Series detects the flux density which is vertical to the marking surface.
In the product with both poles detection, the output voltage (VOUT) is inverted when the S pole or N pole is moved closer
to the marking surface.
In the product with S pole detection, VOUT is inverted when the S pole is moved closer to the marking surface.
In the product with N pole detection, VOUT is inverted when the N pole is moved closer to the marking surface.
Figure 11 shows the direction in which magnetic flux is being applied.
N
S
Marking surface
Figure 11
2. Position of Hall sensor
Figure 12 shows the position of Hall sensor.
The center of this Hall sensor is located in the area indicated by a circle, which is in the center of a package as
described below.
The following also shows the distance (typ. value) between the marking surface and the chip surface of a package.
Top view
The center of Hall sensor;
in this φ 0.3 mm
1
4
2
3
0.16 mm (typ.)
Figure 12
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