austriamicrosystems AG
is now
ams AG
The technical content of this austriamicrosystems application note is still valid.
Contact information:
Headquarters:
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
e-Mail: [email protected]
Please visit our website at www.ams.com
AS5040 8-bit Programmable Magnetic Rotary Encoder
AS5263
AS5263-AB Adapterboard
12 BIT Redundant Automotive Angle Position Sensor
OPERATION MANUAL
1 General Description
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positions are possible. The angular output data is available
over a 12 bit PWM signal or 12 bit ratiometric analog output.
The AS5263 operates at a supply voltage of 5 V and the
supply and output pins are protected against overvoltage up
to +27 V. In addition the supply pins are protected against
reverse polarity up to -18 V.
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The AS5263 is a redundant, contactless magnetic angle
position sensor for accurate angular measurement over a full
turn of 360°. 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 resolution of 0.022° =
16384 positions per revolution. According to this resolution
the adjustment of the application specific mechanical
2 The AS5263 Adapter board
2.1
Board description
The AS5263 adapter board is a simple circuit allowing test and evaluation the rotary encoder quickly without building a test fixture or
PCB. The PCB requires only a 3-wire connection per die: 5V power supply, GND and the output connection (KDOWN is optional)
Capacitor C1, C2, C4 and C5 (all 2.2uF) are buffering the LDO outputs VDD3 and VDD5; C3 and C6 (both 1uF) are placed between
VDD and GND.
4 x 2.6mm mounting
holes
JP1 connector
(GND, power supply,
output/interface)
Figure 1: AS5263 Adapterboard
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AS5263 sensor
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AS5263 Programmable Magnetic Rotary Sensor
Adapterboard Operation Manual
2.2
Mounting the AS5263 adapter board
Bearing
M2~M2.5 Screw + nut
Casing
Rotating shaft and magnet holder
Spacer
Not ferromagnetic (plastic, brass, copper,
stainless steel, aluminum…)
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AS5263-AB PCB
Figure 2: AS5263 adapter board mounting and dimension
A typical diametric magnet (for instance 6x2.5mm) must be placed over on under the AS5263 encoder, and should be centered on
the middle of the package with a tolerance of 0.5mm.
The airgap between the magnet and the encoder casing should be maintained in the range 0.5mm~2mm.
The magnet holder must not be ferromagnetic. Materials as brass, copper, aluminum, stainless steel are the best choices to make
this part.
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AS5263 Programmable Magnetic Rotary Sensor
Adapterboard Operation Manual
Pin#
Pin#
Symbol
Board
AS5263
Board
JP1 - 1
8, 14, 24
GND
Description
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Figure 3: AS5263 adapter board connectors and encoder pinout
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NC_T
GNDD_B
NC
GNDD_T
NC
NC_B
NC_T
NC_T
NC_B
OUT_T
VDD_T
OUT_B
VDD_B
VDD5_B
VDD5_T
NC_B
3 AS5263 adapter board and pinout
S
Supply ground – Bottom Die
JP1 - 2
7, 13, 23
GND
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Supply ground – Top Die
JP1 - 3
30
VCC
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Positive supply pin (overvoltage protected) – Bottom Die
JP1 - 4
29
VCC
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Positive supply pin (overvoltage protected) – Top Die
JP1 - 5
28
OUT
DIO/AIO
Output and interface pin. Provides analog or PWM output (AS5163) and SENT (AS5165). It is
as well used for programming. – Bottom Die
JP1 - 6
27
OUT
DIO/AIO
Output and interface pin. Provides analog or PWM output (AS5163) and SENT (AS5165). It is
as well used for programming. – Top Die
JP1 - 7
22
KDOW N
DO_OD
Kick down functionality – Bottom Die
JP1 - 8
21
KDOWN
DO_OD
Kick down functionality – Top Die
Table 1: Pin description
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multi purpose pin
digital output open drain
supply pin
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Pin types: DIO/AIO
DO_OD
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AS5263 Programmable Magnetic Rotary Sensor
Adapterboard Operation Manual
4 Operation cases
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Below picture shows the operation case for one die (Bottom Die) only. Use the Top Die by connecting in the same way.
Figure 4: Operation cases with the adapter board
The OUT pin (JP1 – 5) is used as output as well as programming interface. The AS5263 provides a pulse width modulated
output (PWM) and an analog output mode. All modes are programmable in terms of output-voltage and corresponding angle.
The Kick down (KDOWN) is an optional connection, used for instance in gas pedal applications.
For further information, please refer to datasheet.
5
Programming the AS5263
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For programming the AS5263 only 3 connections (VCC, GND and OUT) are necessary; please refer to Figure 4. It is
recommended using the AS5000-Programmer and a connectionboard AS5x63-CB, shown in Figure 5, for fusing the device.
AS5x63 – Connection Board
AS5163 – AB/
AS5165 – AB/
AS5263 – AB
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AS5000 - Programmer
Figure 5: Recommended programming setup
More details concerning this programming tool can be found in application note AN5163–10.
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AS5263 Programmable Magnetic Rotary Sensor
Adapterboard Operation Manual
6 AS5263 adapter board hardware
AS5263-AB-1.3 schematics
Figure 6: AS5263-AB adapterboard schematics
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AS5263-AB-1.3 PCB layout
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Figure 7: AS5263-AB adapter board layout
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AS5263 Programmable Magnetic Rotary Sensor
Adapterboard Operation Manual
Revision History
Revision
Date
First version
May 2010
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1.0
Description
Copyrights
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Copyright © 1997-2009, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated,
stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
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Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its
Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the
information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems
AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this
product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended
for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental
requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically
not recommended without additional processing by austriamicrosystems AG for each application.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to
personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical
data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering
of technical or other services.
Contact Information
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Headquarters
austriamicrosystems AG
A-8141 Schloss Premstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
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For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com
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