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AS5030 数据表(PDF) 7 Page - ams AG

部件名 AS5030
功能描述  8-Bit Programmable High Speed Magnetic Rotary Encoder
PDF  44 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS5030 数据表(HTML) 7 Page - ams AG

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www.ams.com/AS5030
Revision 2.4
7 - 44
AS5030
Datasheet - Electrical Character i s t ics
6.3 Magnet Specifications
Recommended magnet: NdFeB 35H BR = 12.000 Gauss, Ø6mm x 2.5mm
6.4 Magnetic Field Alarm Limits
6.5 Hall Element Sensitivity Options
Symbol
Parameter
Conditions
Min
Typ
Max
Units
MD
Magnet diameter
Diametrically magnetized
6
mm
MT
Magnet thickness
2.5
mm
Bi
Magnetic input range
At chip surface, on a radius of 1mm
20
80
mT
vi
Magnet rotation speed
To maintain locked state
30.000
rpm
Bmax
Magnetic field high detection
TAMB=25°C, AGC @ lower limit,
1 sigma = 2.5mT
52
mT
Bmin
Magnetic field low detection
TAMB=25°C, AGC @ upper limit,
1 sigma = 1.5mT
23
Hall array radius
Over x/y chip center
1
mm
Vertical distance of magnet
Recommended distance; operation outside
this range is possible, accuracy may be
reduced
0.5
1
1.8
mm
Horizontal magnet displacement radius
From diagonal package center
0.25
mm
From diagonal IC center
0.5
tkM
Recommended magnet material and
temperature drift
NdFeB Material
-0.12
%/K
SmCo Material
-0.035
Symbol
Parameter
Conditions
Min
Typ
Max
Units
AGCFF
Magnetic field too low alarm limit
AGC = FFH
untrimmed, 25°C, 1sigma
20.3
23.6
mT
AGC0
Magnetic field too high alarm limit
AGC = 0H
untrimmed, 25°C, 1sigma
44.5
52.2
mT
Magnetic field alarm limit trim range
(see Hall Element Sensitivity Options on
page 7)
100
121
%
Temperature coefficient of alarm ranges
Sensitivity increases with temperature which
partly compensates the temperature
coefficient of the magnet
0.052
%/K
Symbol
Parameter
Conditions
Min
Typ
Max
Units
sens
Hall element sensitivity setting
sens = 00 (default); low sensitivity
(see 18-bit OTP Write Commands on page
25)
100
%
sens = 01
106
sens = 10
113
sens = 11 (high sensitivity)
121



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