AS5165 Datasheet PDF - Aurelia Microelettronica


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AS5165
Aurelia Microelettronica

Part Number AS5165
Description AUTOMOTIVE Angle Position Sensor
Page 30 Pages

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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
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AS5165
Preliminary Data Sheet - Contents
Contents
1 General Description .................................................................................................................................................................. 1
2 Key Features............................................................................................................................................................................. 1
3 Applications............................................................................................................................................................................... 1
4 Pin Assignments ....................................................................................................................................................................... 3
4.1 Pin Descriptions.................................................................................................................................................................................... 3
5 Absolute Maximum Ratings ...................................................................................................................................................... 4
6 Electrical Characteristics........................................................................................................................................................... 5
6.1 Operating Conditions............................................................................................................................................................................ 5
6.2 Magnetic Input Specification................................................................................................................................................................. 5
6.3 Electrical System Specifications........................................................................................................................................................... 6
6.4 Timing Characteristics .......................................................................................................................................................................... 7
7 Detailed Description.................................................................................................................................................................. 8
7.1 Operation.............................................................................................................................................................................................. 9
7.1.1 VDD Voltage Monitor ................................................................................................................................................................... 9
7.2 Output Characteristic ........................................................................................................................................................................ 9
7.2.1 Programming Parameters.......................................................................................................................................................... 10
7.2.2 Application Specific Angular Range Programming .................................................................................................................... 10
7.2.3 Application Specific Programming of the Break Point ............................................................................................................... 11
7.2.4 Full Scale Mode ......................................................................................................................................................................... 11
7.2.5 Resolution of the Parameters .................................................................................................................................................... 12
7.2.6 SENT Output Driver Parameters ............................................................................................................................................... 12
8 Application Information ........................................................................................................................................................... 13
8.1 Programming the AS5165............................................................................................................................................................... 13
8.1.1 Hardware Setup......................................................................................................................................................................... 13
8.1.2 Protocol Timing and Commands of Single Pin Interface ........................................................................................................... 14
8.2 OTP Programming Data ..................................................................................................................................................................... 23
8.2.1 Read / Write User Data.............................................................................................................................................................. 27
8.2.2 Programming Procedure............................................................................................................................................................ 27
8.3 Choosing the Proper Magnet .......................................................................................................................................................... 28
8.3.1 Physical Placement of the Magnet ............................................................................................................................................ 29
8.3.2 Magnet Placement..................................................................................................................................................................... 29
9 Package Drawings and Markings ........................................................................................................................................... 30
10 Ordering Information............................................................................................................................................................. 32
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AS5165
Preliminary Data Sheet - Pin Assignments
4 Pin Assignments
Figure 2. TSSOP-14 Pin Configuration
VDD
VDD5
NC
VDD3
GNDA
NC
NC
1
2
3
4
5
6
7
14 OUT
13 NC
12 GNDP
11 NC
10 NC
9 NC
8 GNDD
4.1 Pin Descriptions
Table 1. TSSOP-14 Pin Descriptions
Pin Name
VDD
Pin Number
1
VDD5
2
NC 3
VDD3
GNDA
NC
NC
GNDD
NC
4
5
6
7
8
9
NC
NC
GNDP
NC
OUT
10
11
12
13
14
Pin Type
Supply pin
Supply pin
Multi purpose pin
Supply pin
Supply pin
Multi purpose pin
Multi purpose pin
Supply pin
Multi purpose pin
Multi purpose pin
NC
Supply pin
Multi purpose pin
Multi purpose pin
Description
Positive supply pin. This pin is overvoltage protected.
4.5V- Regulator output, internally regulated from VDD. This
pin needs an external ceramic capacitor of 2.2 µF
Test pins for fabrication. Connected to ground in the
application.
3.45V- Regulator output, internally regulated from VDD5. This
pin needs an external ceramic capacitor of 2.2 µF
Analog ground pin. Connected to ground in the application.
Test pins for fabrication. Connected to ground in the
application.
Test pins for fabrication. Open in the application.
Digital ground pin. Connected to ground in the application.
Test pins for fabrication. Connected to ground in the
application.
Test pins for fabrication. Connected to ground in the
application.
Unconnected (not bonded)
Analog ground pin. Connected to ground in the application.
Test pins for fabrication. Connected to ground in the
application.
SENT output pin.
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AS5165
Preliminary Data Sheet - Absolute Maximum Ratings
5 Absolute Maximum Ratings
Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only, and functional operation of
the device at these or any other conditions beyond those indicated in Electrical Characteristics on page 5 is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Table 2. Absolute Maximum Ratings
Symbol
Parameter
Min Max Units
Comments
VDD
DC supply voltage at pin VDD
Overvoltage
-18 27
V
No operation
VOUT
VDD3
VDD5
Output voltage OUT
DC supply voltage at pin VDD3
DC supply voltage at pin VDD5
-0.3 27
-0.3 5.5
-0.3 7
V
V
V
permanent
ISCR
Input current (latchup immunity)
-100 100
ESD Electrostatic discharge
±4
TStrg
Storage temperature
-55 150
TBODY
Body temperature (Lead-free package)
260
mA Norm: JEDEC 78
Norm: MIL 883 E method 3015
kV VDD, GND, OUT and KDOWN Pin.
All other pins ±2 kV
ºC Min -67ºF; Max +257ºF
t=20 to 40s,
The reflow peak soldering temperature (body
temperature) specified is in accordance with
ºC
IPC/JEDEC J-STD-020C “Moisture/Reflow
Sensitivity Classification for Non-Hermetic
Solid State Surface Mount Devices”.
The lead finish for Pb-free leaded packages is
matte tin (100% Sn).
H
Humidity non-condensing
5 85 %
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