G-MRCO-016

KMT32B Magnetic Angle Sensor TDFN SO8 SPECIFICATIONS       AMR Sensor with 180° period high accuracy high resolution for the use at moderate field strengths tiny TDFN package ROHS & REACH compliant The KMT32B is a magnetic field sensor based on the anisotropic magneto resistance effect, i.e. it is sensing the magnetic field direction independently on the magnetic field strength for applied field strengths H>25 kA/m. The sensor contains two parallel supplied Wheatstone bridges, which enclose a sensitive angle of 45 degrees. FEATURES          Contactless angular position, ideal for harsh environments Design optimized for linearity High accuracy Low cost, low power Self diagnosis feature Attractive SMD packages User has complete control over signal evaluation Extended operating temperature range (-40 °C to +150 °C, +160°C on request) REACH & RoHS compliant (lead free) SENSOR SOLUTIONS /// KMT32B Rev 6 A rotating magnetic field in the surface parallel to the chip (x-y plane) will therefore deliver two independent sinusoidal output signals, one following a cos(2) and the second following a sin(2) function,  being the angle between sensor and field direction (see Figure 2). The KMT32B magnetic field sensor is suited for high precision angle measurement applications at a regular field strength of H 0 ≥ 25 kA/m (generated for example with magnet 67.044 from Magnetfabrik Bonn at a distance of 5.2 mm at room temperature). With reduced accuracy, the sensor KMT32B may be used with a field strength of H0 ≥ 14 kA/m (at room temperature; be aware of the influence of the earth magnetic field!). Most magnets show a decreasing field strength with temperature while the magnetic field direction is unchanged. 06/2017 Page 1 KMT32B Magnetic Angle Sensor APPLICATIONS        Absolute and incremental angle measurement Automotive (steering angle, torque) Robotics Camera positioning Potentiometer replacement Position measurement in medical applications Motor motion control CHARACTERISTIC VALUES Parameter Symbol Condition Min Typ Max Unit A. Operating Limits Max. supply voltage Vcc,max 10 V Max. current (single bridge) Icc,max 4 mA C Operating temperature Top -40 +150 Storage temperature Tst -40 +150 C B. Sensor Specifications (T=25 °C) Supply voltage Vcc Resistance (single bridge) Rb 2400 3000 3600  11 13 mV/V 0 +1 mV/V 0.05 0.2 deg 0.1 deg Output signal amplitude VPEAK Condition A, B 9 Offset voltage VOFF Condition A, B -1 H Condition A, B  Angular inaccuracy Angular hysteresis V 5 Condition A, B C. Sensor Specifications TC of amplitude TCSV Condition A, C TC of resistance TCBR Condition A, C TC of offset TCVoff Condition A, C %/K -0.35 %/K +0.35 -4 0 +4 µV/V/K Stress above one or more of the limiting values may cause permanent damage to the device. Exposure to limiting values for extended periods may affect device reliability. MEASUREMENT CONDITIONS Parameter Symbol Unit Condition Condition A: Set Up Conditions Ambient temperature Supply voltage T °C T = 25 °C (unless otherwise noted) Vcc V Vcc = 5 V H kA/m Applied magnetic field SENSOR SOLUTIONS /// KMT32B Rev 6 H = 25 kA/m 06/2017 Page 2 KMT32B Magnetic Angle Sensor Condition B: Sensor Specifications (360° turn , Vomax>0, Vomin