AK8778B Datasheet, PDF (4/12 Pages) Asahi Kasei Microsystems – HALL EFFECT IC FOR PULSE ENCODERS

[AK8778B]
Electrical Characteristics
Table 5. Electrical characteristics at V_DD=4.0 to 24.0V, Ta= 40 to +125C
Parameter
Symbol Min. Typ. Max. Unit
Note
Current consumption
I_DD
1.4
3.0
5.6
mA
Output saturation voltage
V_SAT
0.4
V
F, D pin, I_SINK= 15mA
Output leak current
I_LEAK
10
mA
F, D=V_DD
Output refresh period
T_P
12.0
16.7
30.5
ms
Magnetic Characteristics
Table 6. Magnetic characteristics at V_DD=4.0 to 24.0V, Ta= 40 to +125C
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operating point of
vertical magnetic field
BopV
0.1
1.7
4.0
mT
Releasing point of
vertical magnetic field
BrpV
4.0
1.7
0.1
mT
Operating point of
horizontal magnetic field
BopH
0.1
1.7
4.0
mT
Operating point of
horizontal magnetic field
BrpH
4.0
1.7
0.1
mT
Hysteresis
BhV, BhH 1.5
3.4
6.8
mT
Note
(*1)
(*1)
(*2)
(*2)
(*1), (*2)
(*1) Horizontal magnetic flux density is zero.
(*2) Vertical magnetic flux density is zero.
MS1466-E-00
September 2012
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