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AS5045B-ASST 数据表(PDF) 7 Page - ams AG

部件名 AS5045B-ASST
功能描述  12-Bit Programmable Magnetic Position Sensor
PDF  33 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS5045B-ASST 数据表(HTML) 7 Page - ams AG

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AS5045B
Datasheet - Electrical Character i s t ics
6.1 Magnetic Input Specification
TAMB = -40 to +125°C, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation) unless otherwise noted. Also valid for version I.
Two-pole cylindrical diametrically magnetized source:
IO
Output current
VDD5V: 4.5V
4
mA
VDD5V: 3V
2
DC Characteristics CMOS Output: PWM
VOH
High level output voltage
VDD5V –
0.5
V
VOL
Low level output voltage
VSS
+0.4
V
IO
Output current
VDD5V: 4.5V
4
mA
VDD5V: 3V
2
DC Characteristics CMOS Output: A, B, Index
VOH
High level output voltage
VDD5V –
0.5
V
VOL
Low level output voltage
VSS
+0.4
V
IO
Output current
VDD5V: 4.5V
4
mA
VDD5V: 3V
2
DC Characteristics Tri-state CMOS Output: DO
VOH
High level output voltage
VDD5V –
0.5
V
VOL
Low level output voltage
VSS
+0.4
V
IO
Output current
VDD5V: 4.5V
4
mA
VDD5V: 3V
2
IOZ
Tri-state leakage current
1
µA
1. Either with 3.3V or 5V supply.
Table 4. Magnetic Input Specification
Symbol
Parameter
Condition
Min
Typ
Max
Unit
dmag
Diameter
Recommended magnet: Ø 6mm x 2.5mm for
cylindrical magnets
46
mm
tmag
Thickness
2.5
mm
Bpk
Magnetic input field amplitude
Required vertical component of the magnetic
field strength on the die’s surface, measured
along a concentric circle with a radius of
1.1mm
45
75
mT
Boff
Magnetic offset
Constant magnetic stray field
± 10
mT
fmag_abs
Input frequency
(rotational speed of magnet)
153 rpm @ 4096 positions/rev
2.54
Hz
Disp
Displacement radius
Max. offset between defined device center
and magnet axis
(see Figure 17)
0.25
mm
Table 3. Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit



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