AS5245-HMFM ams

austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams sales ams.com Please visit our website at www.ams.com Data Sheet AS5245 Programmable 360 Magnetic Angle Encoder with Absolute SSI and PWM Output Two digital 12-bit absolute outputs 1 General Description Quadrature A/B (10- or 12-bit) and Index output signal The AS5245 is a contactless magnetic angle encoder for accurate User programmable zero position measurement up to 360 and includes two AS5145 devices in a punched stacked leadframe. Failure detection mode for magnet placement monitoring and loss of power supply It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. Red-Yellow-Green indicators display placement of magnet in Z-axis 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 Tolerant to magnet misalignment and air gap variations or below the IC. Wide temperature range: - 40C to +150C The absolute angle measurement provides instant indication of the Unique Chip Identifier magnets angular position with a resolution of 0.0879 = 4096 positions per revolution. This digital data is available as a serial bit Fully automotive qualified to AEC-Q100, grade 0 stream and as a PWM signal. Small package: QFN 32 LD (7x7) An internal voltage regulator allows operation of the AS5245 from 3.3V or 5.0V supplies. 3 Applications The AS5245 is fully automotive qualified to AEC-Q100, grade 0. The AS5245 is ideal for applications with an angular travel range from a few degrees up to a full turn of 360. The device is suitable for Automotive applications like Throttle position sensors, Gas/brake 2 Key Features pedal position sensing, Headlight position control, Contactless rotary position sensing, Front panel rotary switches and Replacement of Contactless high resolution rotational position encoding over a potentiometer. full turn of 360 Figure 1. AS5245 Block Diagram VDD3V3 MagINCn MagDECn VDD5V LDO 3.3V PWM PWM Interface Sin Ang DO DSP Absolute Cos Mag Hall Array Interface CSn & (SSI) Frontend CLK Amplifier OTP PDIO Register DTEST1 A Incremental Mux DTEST2 B AS5245 Interface Mode Index Note: This Block Diagram presents only one die www.austriamicrosystems.com/AS5245 Revision 1.5 1 - 31 ams AG Technical content still valid