S-5712ANDL0-M3T1U Datasheet, PDF (17/30 Pages) Seiko Instruments Inc – LOW VOLTAGE OPERATION

LOW VOLTAGE OPERATION BOTH POLES / UNIPOLAR DETECTION TYPE HALL IC
Rev.4.6_00
S-5712 Series
 Operation
1. Direction of applied magnetic flux
This IC detects the flux density which is vertical to the marking surface.
In the product with both poles detection, the output voltage (V_OUT) is inverted when the S pole or N pole is moved closer
to the marking surface.
In the product with S pole detection, V_OUT is inverted when the S pole is moved closer to the marking surface.
In the product with N pole detection, V_OUT is inverted when the N pole is moved closer to the marking surface.
Figure 11 and Figure 12 show the direction in which magnetic flux is being applied.
1. 1 SOT-23-3
1. 2 SNT-4A
N
S
Marking surface
N
S
Marking surface
Figure 11
Figure 12
2. Position of Hall sensor
Figure 13 and Figure 14 show 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.
2. 1 SOT-23-3
Top view
1
The center of Hall sensor;
in this φ 0.3 mm
2. 2 SNT-4A
Top view
1
The center of Hall sensor;
in this φ 0.3 mm
4
2
3
2
3
0.7 mm typ.
0.16 mm typ.
Figure 13
Figure 14
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