MS32 Datasheet, PDF (1/6 Pages) TE Connectivity Ltd – AMR Switching-Sensor

Figure 1: Characteristic curves for MS32 at
different ambient temperatures (-20°C, +30°C,
+80°C)
FEATURES
 Sensor based on solid state
magnetoresistance effect
 Unipolar signal output
 Linear field response
 High sensitivity, low hysteresis
 Temperature compensated
switching point
 Low power consumption due to high
bridge resistance
 Supply voltage up to 30 V
 Small TDFN package
MS32
Switching Sensor
SPECIFICATIONS
 AMR Switching-Sensor
 TDFN Outline 2.5x2.5x0.8 mm³
 Temperature Compensated Switching Point
 Low Power Consumption
The MS32 is a magnetic field sensor which is built in the form of a
Wheatstone bridge. Each of its four resistors is made from
Permalloy, a material that shows the anisotropic magneto
resistance effect. An unidirectional magnetic field in the surface
parallel to the chip (x-y plane) along the y-axis will deliver a field
dependent output signal. A magnetic switching point, which is
almost independent on temperature is typically set to
Hs=1.85 kA/m. In addition, the characteristic curve is linear over a
wide magnetic field range. Thus, the new MS32 simplifies the
adaption of the sensor to different mechanical and magnetical
environments. The sensor die is packaged in a TDFN package.
8
-20°C
+30°C
6
+80°C
4
Hs-range
2
H [kA/m ]
0
0
1
2
s3ensitivity 4
5
6
7
-2
-4
-6
sw itching field Hs
APPLICATIONS
 Contactless position detection (presence,
open/close)
 Industrial
 Consumer
 Automotive
 Small stroke pneumatic cylinders
 Cover positions of Notebooks and Mobiles
 Doors, windows etc.
SENSOR SOLUTIONS ///MS32 Rev 6
1/2016
Page 1