S-5715CNDL1-M3T1U Datasheet, PDF (17/28 Pages) Seiko Instruments Inc – UNIPOLAR DETECTION TYPE HALL IC

HIGH-SPEED / MIDDLE-SPEED LOW CURRENT CONSUMPTION BOTH POLES / UNIPOLAR DETECTION TYPE HALL IC
Rev.2.3_01
S-5715 Series
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-5715 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-5715 Series and the magnetic flux density is lower than BRPN,
VOUT changes from "L" to "H".
Figure 18 shows the relationship between the magnetic flux density and VOUT.
B_HYSN
V_OUT
H
N pole
B_OPN B_RPN
L
S pole
0
Flux density (B)
Figure 18
17