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PDF AS5165 Data sheet ( Hoja de datos )
| Número de pieza | AS5165 | |
| Descripción | AUTOMOTIVE Angle Position Sensor | |
| Fabricantes | Aurelia Microelettronica | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS5165 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Preliminary Data Sheet
AS5165
AUTOMOTIVE Angle Position Sensor with SENT J2716
1 General Description
The AS5165 is a contactless magnetic angle position sensor for
accurate angular measurement over a full turn of 360º. A sub range
can be programmed to achieve the best resolution for the
application. It is a system-on-chip, combining integrated Hall
elements, analog front end, digital signal processing and best in
class automotive protection features in a single device.
To measure the angle, only a simple two-pole magnet, rotating over
the center of the chip, is required. The magnet may be placed above
or below the IC.
The absolute angle measurement provides instant indication of the
magnet’s angular position with a programmable resolution of 0.022º
= 16384 positions per revolution. According to this resolution the
adjustment of the application specific mechanical positions are
possible. The angular output data is available over the SENT J2716
interface.
The AS5165 operates at a supply voltage of 5V and the supply and
output pins are protected against overvoltage up to +27V. In addition
the supply pins are protected against reverse polarity up to -18V.
2 Key Features
360º contactless high resolution angular position encoding
User programmable start and end point of the application region
User programmable clamping levels and programming of the
transition point
Wide temperature range: - 40ºC to + 150ºC
Small Pb-free package: TSSOP 14
3 Applications
The AS5165 is suitable for Automotive applications like throttle and
valve position sensing and several power train applications.
Figure 1. AS5165 Block Diagram
VDD5 VDD3
VDD High voltage /
Reverse polarity
protection
OTP Single pin
Register Interface
AS5165
Hall Array
Frontend
Amplifier
Sin
Cos
ADC
CORDIC
14bit
Angle
Output
DSP
12
SENT
J2716
OUT
Driver
OUT
GND
www.austriamicrosystems.com/AS5165
Revision 0.1
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1 page  
AS5165
Preliminary Data Sheet - Electrical Characteristics
6 Electrical Characteristics
6.1 Operating Conditions
Table 3. Operating Conditions
Symbol
Parameter
TAMB
Ambient temperature
ISUPP
VDD
Supply current
Supply voltage at pin VDD
VDD3 Voltage regulator output voltage at pin VDD3
VDD5 Voltage regulator output voltage at pin VDD5
Conditions
-40ºF…+302ºF
5V Operation
Min
-40
4.5
3.3
6.2 Magnetic Input Specification
TAMB = -40 to +150ºC, VDD5 = 4.5-5.5V (5V operation) unless otherwise noted.
Two-pole cylindrical diametrically magnetized source:
Table 4. Magnetic Input Specification
Symbol
dmag
tmag
Bpk
Boff
Disp
Ecc
Parameter
Diameter
Thickness
Magnetic input field amplitude
Magnetic offset
Field non-linearity
Displacement radius
Eccentricity
Recommended magnet material and
temperature drift
Conditions
Recommended magnet: Ø 6mm x 2.5mm
for cylindrical magnets
Required vertical component of the
magnetic field strength on the die’s surface,
measured along a concentric circle with a
radius of 1.1mm
Constant magnetic stray field
Including offset gradient
Offset between defined device center and
magnet axis (see Figure 25). Dependant on
the selected magnet.
Eccentricity of magnet center to rotational
axis
NdFeB (Neodymium Iron Boron)
SmCo (Samarium Cobalt)
Min
2.5
30
Typ Max
+150
15
5.0 5.5
3.45 3.6
4.5
Typ Max
6
70
±10
5
0.25 1
100
-0.12
-0.035
Units
ºC
mA
V
Units
mm
mm
mT
mT
%
mm
µm
%/K
www.austriamicrosystems.com/AS5165
Revision 0.1
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5 Page 
AS5165
Preliminary Data Sheet - Detailed Description
7.2.3 Application Specific Programming of the Break Point
The break point BP can be programmed as well with a resolution of 14 bits. This is important when the default transition point is inside the
application range. In such a case, the default transition point must be shifted out of the application range. The parameter BP defines the new
position. The function can be used also for an on-off indication.
Figure 6. Individual Programming of the Break Point BP
180 degree
90 degree
T2
Application range
T1
CLH
0 degree
CLL
BP
270 degree
100%
CLH
T2C
electrical range
mechanical range
clamping range
high
T1C
CLL
0 clamping range
low
T1
T2
clamping range
low
7.2.4 Full Scale Mode
Without programming the parameters T1 and T2, the AS5165 is in the full scale mode.
Figure 7. Full Scale Mode
100 %
0 360
For simplification, Figure 7 describes a linear output format. Due to the digital output, a rail to rail operation is possible. (as indicated Figure 7).
www.austriamicrosystems.com/AS5165
Revision 0.1
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| PDF Descargar | [ Datasheet AS5165.PDF ] | |
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