AS5263
12-Bit Redundant Automotive Angle
Position Sensor
General Description
The AS5263 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. The AS5263 includes two AS5163 in one MLF
package.
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 0.087º = 4096
positions per revolution. The start and end point of the sub
segment will be programmed with a resolution of 14-bit
(0.022º= 16384 steps per revolution). According to this
resolution the adjustment of the application specific
mechanical positions are possible. The angular output data is
available over a 12-bit PWM signal or 12-bit ratiometric analog
output.
An internal voltage regulator with over voltage protection and
reverse polarity protection allows the AS5263 to operate in
automotive application up to a voltage to 27V. Programmability
over the output pin reduces the number of pins on the
application connector. The AS5263 is the ideal solution for
safety critical applications due to the redundant approach.
Ordering Information
and
Content Guide
appear at end of
datasheet.
ams Datasheet (discontinued)
[v1-09] 2017-Jul-18
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AS5263 −
General Description
Key Benefits & Features
The benefits and features of AS5263, 12-Bit Redundant
Automotive Angle Position Sensor are listed below:
Figure 1:
Added Value of Using AS5263
Benefits
•
Great flexibility on angular excursion
Features
•
360º contactless high resolution angular position sensing
•
User programmable start and end point of the application
region
•
Saw tooth mode 1-4 slopes per revolution
•
Clamping levels
•
Transition point
•
Broken GND and VDD detection for all external load cases
•
Analog output ratiometric to VDD or PWM-encoded digital
output
•
Wide temperature range: - 40°C to 150°C
•
32-pin MLF (7mm x 7mm) dimple package
•
Simple programming
•
Failure diagnostics
•
Selectable output signal
•
Ideal for applications in harsh
environments due to contactless
position sensing
•
Stacked die redundant approach
Applications
AS5263 is ideal for automotive applications like:
•
Transmission gearbox position sensor
•
Headlight position control
•
Torque sensing
•
Valve position sensing
•
Pedal position sensing
•
Throttle position sensing
•
Non-contact potentiometers
Page 2
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ams Datasheet (discontinued)
[v1-09] 2017-Jul-18
AS5263 −
General Description
Block Diagram
The functional blocks of this device are shown below:
Figure 2:
AS5263 Block Diagram
VDD5_B
VDD5_T
VDD_T
VDD_B
High voltage/
Reverse polarity
protection
VDD3_B
VDD3_T
OTP
Register
Single pin
Interface
AS5263
Hall Array
Frontend
Amplifier
ADC
Zero
Position
Sin
Cos
Full Turn Output
CORDIC
Angle
14-bit
12-bit
PWM
Output
DSP
12
12-bit
DAC
M
U
X
Programmable
Angle
OUT
Driver
OUT_T
OUT_B
KDOWN_T
KDOWN_B
Top Silicon Die
Bottom Silicon Die
GND_T GND_B
_T …… Pin of the Top Device
_B …… Pin of the Bottom Device
ams Datasheet (discontinued)
[v1-09] 2017-Jul-18
Page 3
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AS5263 −
Pin Assignment
Pin Assignment
Figure 3:
Pin Diagram (Top View)
VDD5_B
VDD5_T
VDD_B
VDD_T
OUT_B
OUT_T
NC_B
26
32
31
30
29
28
27
NC_T
25
24
23
22
NC
NC
NC_T
NC_B
VDD3_T
VDD3_B
GNDA_T
GNDA_B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GNDP_B
GNDP_T
KDOWN_B
KDOWN_T
NC_B
NC_T
NC
NC
AS5263
21
20
19
18
17
GNDD_T
GNDD_B
NC_B
NC_T
NC
NC
NC_T
Pin Description
Figure 4
provides the description of each pin of the standard
32-pin MLF (7mm x 7mm) Dimple package. It is recommended
to keep the electrical separation as well on the printed circuit
board (PCB) in the application (see
Figure 4).
Figure 4:
Pin Descriptions
Pin
Number
1
2
3
4
Pin Name
NC
NC
NC_T
Pin Type
-
-
Not bonded
Not bonded
NC_B
Description
DIO/AIO
multi purpose pin
NC_B
Test pin for fabrication.
Connected to top ground in the
application.
Test pin for fabrication.
Connected to bottom ground in
the application.
Page 4
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ams Datasheet (discontinued)
[v1-09] 2017-Jul-18
AS5263 −
Pin Assignment
Pin
Number
Pin Name
Pin Type
Description
3.45V- Regulator output, internally regulated from
VDD5.
This pin needs an external ceramic capacitor of 2.2μF.
Connect second terminal of capacitor to GND intended for
the top die.
3.45V- Regulator output, internally regulated from
VDD5.
This pin needs an external ceramic capacitor of 2.2μF.
Connect second terminal of capacitor to GND intended for
the bottom die.
Analog ground pin.
Connected to GND for the top die in the
application.
Analog ground pin.
Connected to GND intended for the
bottom die in the application.
Test pin for fabrication.
Connected to GND intended for the
top die in the application.
5
VDD3_T
6
VDD3_B
Supply pin
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
GNDA_T
GNDA_B
NC_T
NC_B
NC
NC
GNDD_T
Supply pin
GNDD_B
NC_T
DIO/AIO
multi purpose pin
NC_B
NC
NC
NC_T
DIO/AIO
multi purpose pin
NC_B
KDOWN_T
Digital output
open drain
KDOWN_B
-
-
DIO/AIO
multi purpose pin
Test pin for fabrication.
Connected to GND intended for the
bottom die in the application.
Test pin for fabrication.
Open in the application.
Test pin for fabrication.
Open in the application.
Digital ground pin.
Connected to GND intended for the top
die in the application.
Digital ground pin.
Connected to GND intended for the
bottom die in the application.
Test pin for fabrication.
Connected to GND intended for the
top die in the application.
Test pin for fabrication.
Connected to GND intended for the
bottom die in the application.
Not bonded
Not bonded
Test pin for fabrication.
Connected to GND intended for the
top die in the application.
Test pin for fabrication.
Connected to GND intended for the
bottom die in the application.
Kick down functionality.
Open drain user pull-up resistor
connected to the intended VDD top supply.
Kick down functionality.
Open drain user pull-up resistor
connected to the intended VDD bottom supply.
ams Datasheet (discontinued)
[v1-09] 2017-Jul-18
Page 5
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