S-57M1 Datasheet, PDF (5/16 Pages) Seiko Instruments Inc – HIGH-SPEED BIPOLAR HALL EFFECT LATCH

Rev.1.2_01
HIGH-SPEED BIPOLAR HALL EFFECT LATCH
S-57M1 Series
 Electrical Characteristics
Table 5
Item
Symbol
(Ta = +25°C, VDD = 5.0 V, VSS = 0 V unless otherwise specified)
Condition
Min.
Typ. Max.
Unit
Test
Circuit
Power supply voltage VDD
−
2.7 5.0 5.5
V
−
Current consumption IDD Average value
− 1400 2000 μA
1
Nch open-drain output Output transistor Nch,
product
IOUT = 2 mA
−
−
0.4
V
2
Output voltage
VOUT
CMOS output product
Output transistor Nch,
IOUT = 2 mA
Output transistor Pch,
IOUT = −2 mA
−
VDD −
0.4
−
−
0.4
−
V
V
2
3
Leakage current
ILEAK
Nch open-drain output product
Output transistor Nch, VOUT = 5.5 V
−
−
1
μA
4
Operation cycle
tCYCLE
−
−
50 100 μs
−
 Magnetic Characteristics
Table 6
(Ta = +25°C, VDD = 5.0 V, VSS = 0 V unless otherwise specified)
Item
Symbol
Condition
Min.
Typ.
Max. Unit Test Circuit
Operation point^*1 S pole
BOP
−
1.4
3.0
4.0
mT
5
Release point^*2
N pole
BRP
−
−4.0
−3.0
−1.4
mT
5
Hysteresis width^*3
BHYS
BHYS = BOP − BRP
−
6.0
−
mT
5
*1. BOP: Operation point
BOP is the value of magnetic flux density when the output voltage (VOUT) changes after the magnetic flux density applied
to the S-57M1 Series by the magnet (S pole) is increased (by moving the magnet closer).
VOUT retains the status until a magnetic flux density of the N pole higher than BRP is applied.
*2. BRP: Release point
BRP is the value of magnetic flux density when the output voltage (VOUT) changes after the magnetic flux density applied
to the S-57M1 Series by the magnet (N pole) is increased (by moving the magnet closer).
VOUT retains the status until a magnetic flux density of the S pole higher than BOP is applied.
*3. BHYS: Hysteresis width
BHYS is the difference of magnetic flux density between BOP and BRP.
Remark The unit of magnetic density mT can be converted by using the formula 1 mT = 10 Gauss.
5