AS5030ATST(2007) 查看數據表（PDF） - austriamicrosystems AG
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AS5030ATST Datasheet PDF : 33 Pages
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AS5030 8-bit Programmable Magnetic Rotary Encoder
4.4 Magnet Specifications
Recommended magnet: NdFeB 35H BR = 12.000 Gauss, Ø6mm x 2.5mm
Parameter
Symbol
Min
Typ
Max
Unit
Note
Magnet diameter
MD
6
mm
diametrically magnetized
Magnet thickness
MT
2.5
mm
Magnetic Input Range
Bi
20
80
mT
at chip surface, on a radius of
1mm
Magnet rotation speed
vi
Magnetic field high
detection
Bmax
Magnetic field low
detection
Bmin
Hall Array radius
30,000
rpm
to maintain locked state
52
Tamb=25°C, AGC@lower limit,
1 sigma = 2.5mT
mT
23
Tamb=25°C, AGC@upper limit,
1 sigma = 1.5mT
1
mm
over x/y chip center
vertical distance of
magnet
Horizontal magnet
displacement radius
Recommended magnet
material and temperature tkM
drift
0.5
1
1.8
0.25
0.5
-0.12
-0.035
Recommended distance;
mm
operation outside this range is
possible, accuracy may be
reduced
from diagonal package center
mm
from diagonal IC center
NdFeB Material
%/K
SmCo Material
4.5 Magnetic Field Alarm Limits
Parameter
Symbol
Min
Magnetic field too low
alarm limit
AGCFF
20.3
Magnetic field too high
alarm limit
AGC0
44.5
Magnetic field alarm limit
trim range
100
Temperature coefficient
of alarm ranges1)
Typ
Max
23.6
52.2
121
0.052
Unit
Note
mT
AGC = FFH
untrimmed, 25°C, 1sigma
mT
AGC = 0H
untrimmed, 25°C, 1sigma
%
see 4.6
Sensitivity increases with
%/K
temperature which partly
compensates the temperature
coefficient of the magnet
4.6 Hall Element sensitivity options
Parameter
Symbol
Min
Typ
100
Hall Element sensitivity
setting
sens
106
113
121
Max
Unit
Note
sens = 00 (default;
low sensitivity; see 5.2.4)
% sens = 01
sens = 10
sens = 11 (high sensitivity)
Rev. 1.8
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