S-5717ANDL8-I4T1U Datasheet, PDF (12/19 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
3. 3 Product with N pole detection
When the magnetic flux density vertical to the marking surface exceeds BOPN after the N pole of a magnet is
moved closer to the marking surface of the S-5717 Series, VOUT changes from "H" to "L". When the N pole of a
magnet is moved further away from the marking surface of the S-5717 Series and the magnetic flux density is
lower than BRPN, VOUT changes from "L" to "H".
Figure 15 shows the relationship between the magnetic density and VOUT.
B_HYSN
V_OUT
H
N pole
B_OPN
L
B_RPN
0
S pole
Magnetic flux density (B)
Figure 15
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