ANGLE ENCODER. AS5043 Datasheet

AS5043 ENCODER. Datasheet pdf. Equivalent

Part AS5043
Description MAGNETIC ANGLE ENCODER
Feature AS5043 Programmable 360° Magnetic Angle Encoder AS5043 PROGRAMMABLE 360° MAGNETIC ANGLE ENCODER WIT.
Manufacture austriamicrosystems AG
Total Page 30 Pages
Datasheet
Download AS5043 Datasheet



AS5043
AS5043
Data Sheet - Pin Configuration
AS5043
Programmable 360° Magnetic Angle Encoder
with Absolute SSI and Analog Outputs
Data Sheet
1 General Description
The AS5043 is a contactless magnetic angle encoder for
accurate measurement up to 360°.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
The AS5043 provides a digital 10-bit as well as a
programmable analog output that is directly proportional
to the angle of a magnet, rotating over the chip.
The analog output can be configured in many ways,
including user programmable angular range, adjustable
output voltage range, voltage or current output, etc..
An internal voltage regulator allows operation of the
AS5043 from 3.3V or 5.0V supplies.
2 Benefits
Complete system-on-chip
ƒ Flexible system solution provides absolute output,
both digital and analog
ƒ Angle measurement with software programmable
range up to 360°
ƒ High reliability due to non-contact magnetic sensing
ƒ Ideal for applications in harsh environments
ƒ Robust system, tolerant to magnet misalignment,
airgap variations, temperature variations and
external magnetic fields
ƒ No calibration required
Figure 1: Typical Arrangement of AS5043 and Magnet
3 Key Features
ƒ 360° contactless high resolution angular position
encoding
ƒ User programmable zero position
ƒ Two 10-bit absolute outputs:
ƒ Serial digital interface and
ƒ Versatile analog output
programmable angular range up to 360°
programmable ratiometric output voltage range
ƒ Failure detection mode for magnet field strength
and loss of power supply
ƒ Serial read-out of multiple interconnected
AS5043 devices using daisy chain mode
ƒ Mode input for optimizing noise vs. speed
ƒ Alignment mode for magnet placement guidance
ƒ Wide temperature range: - 40°C to + 125°C
ƒ Small package: SSOP 16 (5.3mm x 6.2mm)
4 Applications
The AS5043 is ideal for applications with an angular
travel range from a few degrees up to a full turn of
360°, such as
- Industrial applications:
- Contactless rotary position sensing
- Robotics
- Valve Controls
- Automotive applications:
- Throttle position sensors
- Gas / brake pedal position sensing
- Headlight position control
Front panel rotary switches
Replacement of potentiometers
www.austriamicrosystems.com
Revision 1.80
1 – 36



AS5043
AS5043
Data Sheet - Pin Configuration
5 Pin Configuration
Figure 2: AS5043 Pin Configuration SSOP16
MagRngn
Mode
CSn
CLK
NC
DO
VSS
Prog_DI
1
2
3
4
5
6
7
8
16 VDD5V
15 VDD3V3
14 NC
13 NC
12 Vout
11 FB
10 DACout
9 DACref
Package = SSOP16 (16 lead Shrink Small Outline Package)
Table 1: Pin Description SSOP16
Pin Symbol Type
1 MagRngn DO_OD
2 Mode
3 CSn
4 CLK
5 NC
6 DO
7 VSS
DI_PD, ST
DI_PU, ST
DI,ST
-
DO_T
S
8 Prog_DI DI_PD
9 DACref AI
10 DACout AO
11 FB
AI
12 Vout
AO
13 NC
-
14 NC
-
15 VDD3V3 S
16 VDD5V S
Description
Magnet Field Magnitude RaNGe warning; active low, indicates that the magnetic field
strength is outside of the recommended limits.
Mode input. Select between low noise (low, connect to VSS) and high speed (high,
connect to VDD5V) mode at power up. Internal pull-down resistor.
Chip Select, active low; Schmitt-Trigger input, internal pull-up resistor (~50kΩ)
Clock Input of Synchronous Serial Interface; Schmitt-Trigger input
must be left unconnected
Data Output of Synchronous Serial Interface
Negative Supply Voltage (GND)
OTP Programming Input and Data Input for Daisy Chain mode. Internal pull-down resistor
(~74kΩ).
Should be connected to VSS if programming is not used
DAC Reference voltage input for external reference
DAC output (unbuffered, Ri ~8kΩ)
Feedback, OPAMP inverting input
OPAMP output
Must be left unconnected
Must be left unconnected
3V-Regulator Output for internal core, regulated from VDD5V.Connect to VDD5V for 3V
supply voltage. Do not load externally.
Positive Supply Voltage, 3.0 to 5.5 V
DO_OD digital output open drain
DI_PD digital input pull-down
DI_PU digital input pull-up
S
DO_T
ST
supply pin
digital output /tri-state
Schmitt-trigger input
AI
AO
DI
analog input
analog output
digital input
www.austriamicrosystems.com
Revision 1.80
2 – 36





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