AS5163 Automotive Rotary Encoder IC

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. 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 as a 12-bit PWM or analog signal. An internal voltage regulator with overvoltage protection and -18V reverse polarity allows the AS5163 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.

Key Features

• 360° contactless high resolution angular position encoding
• User programmable starting and end point of the application region
• User programmable clamping levels and programming of the transition point
• 12-bit PWM or powerful analog output
• Fully short circuit protected
• High driving capability for resistive and capacitive loads
• Continuous short circuit monitoring
• Broken GND and VDD detection over a wide range of different load conditions
• Simplified programming due to provided programming hardware and software
• Failure detection mode for magnet placement monitoring and loss of power supply, indication of high voltage condition
• Wide temperature range: -40°C to +150°C
• Small Pb-free package: TSSOP-14

Applications

• Transmission gearbox position sensor
• Headlight position control
• Torque sensing
• Valve position sensing
• Pedal position sensing
• Throttle position sensing
• Non-contact potentiometers
• flaps and flaps-similar

Block diagram for AS5163 Automotive Rotary Encoder IC