S-5711A Datasheet, PDF (7/26 Pages) Seiko Instruments Inc – HALL IC

Rev.2.4_00
HALL IC
S-5711A Series
„ Magnetic Characteristics
1. Product with detection of both poles
Table 7
Item
Operating point^*1
Release point^*2
Hysteresis width^*3
S pole
N pole
S pole
N pole
S pole
N pole
Symbol
B_OPS
B_OPN
B_RPS
B_RPN
B_HYSS
B_HYSN
(Ta = 25°C, V_DD = 3.0 V, V_SS = 0 V unless otherwise specified)
Conditions
Test
Min.
Typ.
Max.
Unit _Circuit
−
−
3.8
6.0
mT
3
−
−6.0
−3.8
−
mT
3
−
0.5
2.8
−
mT
3
−
−
−2.8
−0.5
mT
3
B_HYSS = B_OPS − B_RPS
B_HYSN = |B_OPN − B_RPN|
−
1.0
−
mT
3
−
1.0
−
mT
3
2. Product with detection of south pole
Table 8
Item
Operating point^*1
Release point^*2
Hysteresis width^*3
S pole
S pole
S pole
Symbol
B_OPS
B_RPS
B_HYSS
(Ta = 25°C, V_DD = 3.0 V, V_SS = 0 V unless otherwise specified)
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
−
−
3.8
6.0
mT
3
−
0.5
2.8
−
mT
3
B_HYSS = B_OPS − B_RPS
−
1.0
−
mT
3
3. Product with detection of north pole^*4
Table 9
Item
Operating point^*1
Release point^*2
Hysteresis width^*3
N pole
N pole
N pole
Symbol
B_OPN
B_RPN
B_HYSN
(Ta = 25°C, V_DD = 3.0 V, V_SS = 0 V unless otherwise specified)
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
−
−6.0
−3.8
−
mT
3
−
−
−2.8
−0.5
mT
3
B_HYSN = |B_OPN − B_RPN|
−
1.0
−
mT
3
*1. B_OPN, B_OPS : Operating points
The operating points are the values of magnetic flux density when the output voltage (V_OUT) is inverted after the magnetic
flux density applied to the S-5711A Series by the magnet (N or S pole) is increased (the magnet is moved closer).
Even when the magnetic flux density exceeds B_OPN or B_OPS, V_OUT retains the status.
*2. B_RPN, B_RPS : Release points
The release points are the values of magnetic flux density when the output voltage (V_OUT) is inverted after the magnetic
flux density applied to the S-5711A Series by the magnet (N or S pole) is decreased (the magnet is moved further away).
Even when the magnetic flux density falls below B_RPN or B_RPS, V_OUT retains the status.
*3. B_HYSN, B_HYSS : Hysteresis widths
B_HYSN and B_HYSS are the difference between B_OPN and B_RPN, and B_OPS and B_RPS, respectively.
*4. Selectable by option
Remark The unit of magnetic density mT can be converted by using the formula 1 mT = 10 Gauss.
Seiko Instruments Inc.
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