S-5717ANDL8-I4T1U Datasheet, PDF (6/19 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
 Magnetic Characteristics
1. Product with both poles detection
1. 1 Product with BOP = 3.3 mT typ.
Item
Operation point^*1
Release point^*2
Hysteresis width^*3
S pole
N pole
S pole
N pole
S pole
N pole
Symbol
BOPS
BOPN
BRPS
BRPN
BHYSS
BHYSN
Table 8
(Ta = +25°C, VDD = 1.85 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
2.3
3.3
4.7
mT
5
−
−4.7
−3.3
−2.3
mT
5
−
1.2
2.4
3.4
mT
5
−
−3.4
−2.4
−1.2
mT
5
BHYSS = BOPS − BRPS
−
0.9
−
mT
5
BHYSN = |BOPN − BRPN|
−
0.9
−
mT
5
2. Product with S pole detection
2. 1 Product with BOP = 3.3 mT typ.
Item
Operation point^*1
Release point^*2
Hysteresis width^*3
S pole
S pole
S pole
Symbol
BOPS
BRPS
BHYSS
Table 9
(Ta = +25°C, VDD = 1.85 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
2.3
3.3
4.7
mT
5
−
1.2
2.4
3.4
mT
5
BHYSS = BOPS − BRPS
−
0.9
−
mT
5
3. Product with N pole detection
3. 1 Product with BOP = 3.3 mT typ.
Item
Operation point^*1
Release point^*2
Hysteresis width^*3
N pole
N pole
N pole
Symbol
BOPN
BRPN
BHYSN
Table 10
(Ta = +25°C, VDD = 1.85 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
−4.7
−3.3
−2.3
mT
5
−
−3.4
−2.4
−1.2
mT
5
BHYSN = |BOPN − BRPN|
−
0.9
−
mT
5
*1. BOPN, BOPS: Operation points
BOPN and BOPS are the values of magnetic flux density when the output voltage (VOUT) is inverted after the magnetic flux
density applied to the S-5717 Series by the magnet (N pole or S pole) is increased (the magnet is moved closer).
Even when the magnetic flux density exceeds BOPN or BOPS, VOUT retains the status.
*2. BRPN, BRPS: Release points
BRPN and BRPS are the values of magnetic flux density when the output voltage (VOUT) is inverted after the magnetic flux
density applied to the S-5717 Series by the magnet (N pole or S pole) is decreased (the magnet is moved further away).
Even when the magnetic flux density falls below BRPN or BRPS, VOUT retains the status.
*3. BHYSN, BHYSS: Hysteresis widths
BHYSN and BHYSS are the difference between BOPN and BRPN, and BOPS and BRPS, respectively.
Remark The unit of magnetic density mT can be converted by using the formula 1 mT = 10 Gauss.
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