Angle position sensor

The magnetic rotary encoder family, AS5134, has been expanded, is fully qualified to AEC-Q100 and is specifically designed for brushless DC sensing in automotive applications in an ambient temperature range up to 150°C.

Released by austriamicrosystems, the device has an 8.5-bit resolution and can recognise 360 positions within one 360° turn and is accessible with either a serial or a PWM interface. In addition, there are three differently programmable incremental outputs available, one of which delivers a two-phase commutation signal for brushless DC motors.

Another special feature is the programmability of one to six pole pairs. The IC provides a ‘power saving mode’ with a power consumption of less than 1.5 mA and a fast start-up time to normal operation of less than 250 µs.

A ‘daisy chain’ mode to read position data serially over a 2-wire bus is available.