AS5132

Datasheet AS5132 3 6 0 S t e p ( 8 . 5 b i t ) P r o g r a m m a b l e H ig h S p e e d M a g n e t i c R o t a r y E n c o d e r 1 General Description The AS5132 is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360 degrees. It is a systemon-chip, combining integrated Hall elements, analog frontend and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip is required. The absolute angle measurement provides instant indication of the magnet’s angular position with a resolution of 8.5 bit = 360 positions per revolution. This digital data is available as serial output over the interface and as a pulse width modulated (PWM) signal. An additional U,V,W output can be used for a block commutation for a brushless DC motor. An incremental signal is available as an option. In addition to the angle information, the strength of the magnetic field is also available as a 5-bit code. A software programmable (OTP) zero position simplifies assembly as the zero position. The magnet does not need to be mechanically aligned. Two digital absolute outputs (8.5 bit): - Serial interface - PWM output Incremental output with adjustable number of pulses BLDC Output UVW, selectable for 1,2,3,4,5,6 pole pairs Supports external PWM clock mode Static and dynamic pre-commutation feature User programmable zero position and sensitivity High speed: up to 72,900 rpm D...