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S5718 Datasheet(PDF) 9 Page - Seiko Instruments Inc

Part No. S5718
Description  LOW VOLTAGE OPERATION OMNIPOLAR / UNIPOLAR DETECTION TYPE HALL EFFECT SWITCH IC WITH SWITCHABLE DETECTION POLE FUNCTION
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Maker  SII [Seiko Instruments Inc]
Homepage  http://www.sii.co.jp
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S5718 Datasheet(HTML) 9 Page - Seiko Instruments Inc

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LOWVOLTAGEOPERATIONOMNIPOLAR/UNIPOLARDETECTIONTYPEHALLEFFECTSWITCHICWITHSWITCHABLEDETECTIONPOLEFUNCTION
Rev.1.1_00
S-5718 Series
9
5. Product with BOP = 4.5 mT typ. (BHYS = 2.5 mT typ.)
Table 13
(Ta =
+25°C, VDD = 1.8 V, VSS = 0 V unless otherwise specified)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Test
Circuit
Operation point
*1
S pole
BOPS
SWP pin = VIM or VIL
2.5
4.5
6.0
mT
7
N pole
BOPN
SWP pin = VIM or VIH
−6.0
−4.5
−2.5
mT
7
Release point
*2
S pole
BRPS
SWP pin = VIM or VIL
0.8
2.0
3.5
mT
7
N pole
BRPN
SWP pin = VIM or VIH
−3.5
−2.0
−0.8
mT
7
Hysteresis width
*3
S pole
BHYSS
BHYSS = BOPS
− BRPS
2.5
mT
7
N pole
BHYSN
BHYSN =
|BOPN − BRPN|
2.5
mT
7
*1. BOPN, BOPS: Operation points
BOPN and BOPS are the values of magnetic flux density when the output voltage (VOUT) changes after the magnetic
flux density applied to this IC by the magnet (N pole or S pole) is increased (by moving the magnet 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) changes after the magnetic
flux density applied to this IC 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 of magnetic flux density between BOPN and BRPN, and BOPS and BRPS,
respectively.
Remark The unit of magnetic flux density mT can be converted by using the formula 1 mT = 10 Gauss.


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