English
Language : 

S-57B1 Datasheet, PDF (6/20 Pages) Seiko Instruments Inc – OPERATION HIGH-SPEED UNIPOLAR DETECTION TYPE HALL IC
◁
125°C OPERATION HIGH-SPEED UNIPOLAR DETECTION TYPE HALL IC
S-57B1 Series
Rev.3.0_00
 Magnetic Characteristics
1. Product with BOP = 3.0 mT typ.
Table 7
Item
Operating point*1
Release point*2
Hysteresis width*3
S pole
S pole
S pole
Symbol
BOPS
BRPS
BHYSS
(Ta = +25°C, VDD = 5.0 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
1.4
3.0
4.0
mT
5
−
1.1
2.2
3.7
mT
5
BHYSS = BOPS − BRPS
−
0.8
−
mT
5
2. Product with BOP = 4.5 mT typ.
Table 8
Item
Operating point*1
Release point*2
Hysteresis width*3
S pole
S pole
S pole
Symbol
BOPS
BRPS
BHYSS
(Ta = +25°C, VDD = 5.0 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
2.5
4.5
6.0
mT
5
−
2.0
3.5
5.5
mT
5
BHYSS = BOPS − BRPS
−
1.0
−
mT
5
3. Product with BOP = 7.0 mT typ.
Table 9
Item
Operating point*1
Release point*2
Hysteresis width*3
S pole
S pole
S pole
Symbol
BOPS
BRPS
BHYSS
(Ta = +25°C, VDD = 5.0 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ.
Max. Unit Test Circuit
−
5.0
7.0
8.5
mT
5
−
3.7
5.2
7.2
mT
5
BHYSS = BOPS − BRPS
−
1.8
−
mT
5
*1. BOPS: Operating point
BOPS is the value of magnetic flux density when the output voltage (VOUT) changes after the magnetic flux density
applied to this IC by the magnet (S pole) is increased (the magnet is moved closer).
Even when the magnetic flux density exceeds BOPS, VOUT retains the status.
*2. BRPS: Release point
BRPS is the value of magnetic flux density when the output voltage (VOUT) changes after the magnetic flux density
applied to this IC by the magnet (S pole) is decreased (the magnet is moved further away).
Even when the magnetic flux density falls below BRPS, VOUT retains the status.
*3. BHYSS: Hysteresis width
BHYSS is the difference of magnetic flux density between BOPS and BRPS.
Remark The unit of magnetic flux density mT can be converted by using the formula 1 mT = 10 Gauss.
6
 ▷