S-5712ANDL0-M3T1U Datasheet, PDF (19/30 Pages) Seiko Instruments Inc – LOW VOLTAGE OPERATION

LOW VOLTAGE OPERATION BOTH POLES / UNIPOLAR DETECTION TYPE HALL IC
Rev.4.6_00
S-5712 Series
3. 3 Product with N pole detection
When the magnetic flux density vertical to the marking surface exceeds B_OPN after the N pole of a magnet is
moved closer to the marking surface of this IC, V_OUT changes from "H" to "L". When the N pole of a magnet is
moved further away from the marking surface of this IC and the magnetic flux density is lower than B_RPN, V_OUT
changes from "L" to "H".
Figure 17 shows the relationship between the magnetic flux density and V_OUT.
B_HYSN
V_OUT
H
N pole
B_OPN
L
B_RPN
0
S pole
Magnetic flux density (B)
Figure 17
19