AS5163 Datasheet, PDF (1/33 Pages) ams AG – 12 BIT AUTOMOTIVE Angle Position Sensor

AS5163
12 BIT AUTOMOTIVE Angle Position Sensor
DATA SHEET
General Description
The AS5163 is a 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 positions are possible.
The angular output data is available over a 12 bit PWM
signal or 12 bit ratiometric analog output.
The AS5163 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.
Figure 1: Typical arrangement of AS5163 and magnet
Applications
- Automotive applications:
- throttle and valve position sensing
- gearbox position sensor
- Headlight position control
- Torque sensing
- pedal position sensing
- non contact potentiometers
Benefits
- Unique fully differential patented solution
- Best protections for automotive applications
- Easy to program
- Flexible interface selection PWM, analog output
- Ideal for applications in harsh environments due to
contactless position sensing
- Robust system, tolerant to magnet misalignment, air
gap variations, temperature variations and external
magnetic fields
- No calibration required because of inherent
accuracy.
- High driving capability of analog output (including
diagnostics)
Key Features
− 360° 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.
− Powerful analog output
• short circuit monitor
• High driving capability for resistive and
capacitive loads
− Wide temperature range: - 40°C to + 150°C
− Small Pb-free package: TSSOP 14.
− Broken GND and VDD detection over a wide range
of different load conditions.
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