The AS5163 introduced by austriamicrosystems is a magnetic rotary encoder IC that is designed to satisfy the stringent automotive requirements in angle sensing applications where robust IC protection is essential. The automotive magnetic encoder IC incorporates both +27V over-voltage protection and -18V reverse polarity at supply pins. The device features an intelligent short circuit monitoring function to protect it against damage under short circuit condition. This makes the encoder IC suitable for automotive applications, such as throttle or gas-pedal systems. The IC offers a single-wire interface together with its robust protection features. It allows system designers to meet their performance and reliability requirements, while optimising system cost.
The IC's single wire pin can be configured either as a 14bit digital, 12bit PWM or ratiometric analogue output. The IC can be customised by the user to cover any system specific angle range. The programming of the desired angle range is achieved by setting a start and end position of the rotational movement. This feature makes the IC flexible and suitable for a variety of automotive angle sensing applications. The IC can operate over an ambient temperature range of -40 to +150°C. It is available in a small TSSOP 14 package and operates at 5V supply voltage.
