View KMT32B_4160624.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MAGNETIC ANGLE SENSOR KMT32B
Preliminary
Preliminary Data Sheet KMT32B
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
Preliminary
FEATURES
* * * * * * * * * * Contactless angular position Ideal for harsh environments due to magnetic sensing Factory optimized linearity Low Cost High Accuracy High rotational speed up to 30,000 rpm Extended operating temperature range (-40 to +150 C C) Low Power RoHS compliant (lead free) SMD package
APPLICATIONS
* * * * * * * Absolute and incremental angle Angle Measurement Motor motion control Robotics Camera positioning Potentiometer replacement Automotive
PACKAGES
SM8
SO8
TDFN
Die
General Description
The KMT32B is a magnetic field sensor based on the anisotropic magnetoresistance effect. The sensor contains two parallel supplied Wheatstone bridges, which enclose a sensitive angle of 45 degrees. A rotating magnetic field in the surface parallel to the chip (x-y plane) will 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 1).
15
10
5 Uo/Ucc [mV/V]
KMT32B
0 0 -5 45 90 135 180 225 270 315 360
-Vo1 -Vo2 +Vcc2
GND1 GND2 +Vo2 +Vo1
-10
+Vcc1
-15 [de g]
bridge1 (sin) bridge2 (cos)
Figure 1: Characteristic curves for KMT32B
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
Preliminary
The KMT32B magnetic field sensor is suited for high precision angle measurement applications under low field conditions (regularly H0 = 25 kA/m, with reduced accuracy applicable down to H0 = 8 kA/m; beware of earth's magnetic field !).
Circuit Diagram
CHARACTERISTIC VALUES (PRELIMINARY)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
A. Operating Limits
max. supply voltage Vcc,max 10 4 @T= TBD C -40 -25 TBD +150 +150 V mA mW C C
max. current (single bridge) Icc,max power dissipation operating temperature storage temperature Ptot Top Tst
B. Sensor Specifications (T=25 C)
Supply voltage Resistance (single bridge) Output signal range Offset voltage angular inaccuracy angular hysteresis Vcc Rb 2400 Condition A, B Condition A, B Condition A, B Condition A, B 17 -1 5 3000 20 0 0.05 +1 0.2 0.1 8.5 3600 V mV/V mV/V deg deg
V/Vcc
Voff
H
C. Sensor Specifications
TC of amplitude TC of resistance TC of offset TCSV TCBR TCVoff Condition A, C Condition A, C Condition A, C -0.36 +0.27 -4 -0.32 +0.32 0 -0.28 +0.37 +4 %/K %/K V/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.
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
Preliminary
MEASUREMENT CONDITIONS
PARAMETER
SYMBOL
UNIT
CONDITION
A. Set Up Conditions
ambient temperature supply voltage applied magnetic field T Vcc H C V kA/m T = 235 (unless otherwise noted) C Vcc=5 V H=25 kA/m
B. Sensor Specifications (T=25 360 turn , H=25 kA/m , Vomax>0, Vomin<0) C,
signal amplitude signal offset angular hysteresis angular inaccuracy
V/V
Voff
mV/V mV/V deg deg
V/V=Vomax - Vomin Voff=Vomax + Vomin
H
H = MAX|left turn -right turn| max. angular difference between left and right turn =MAX|0-| max. angular difference between actual value 0 and measured angle; offset voltage error contributions not included
C. Sensor Specifications (T=-25 +125 C, C)
ambient temperatures TC of amplitude T TCSV C %/K T1=-25 T0=+25 T2=+125 C, C, C
V V (T2 ) - (T1 ) 1 V V TCV = 100% V (T2 - T1 ) (T1 ) V
TC of resistance
TCBR
%/K
TCR =
TC of offset TCVoff V/(VK)
R(T2 ) - R(T1 ) 1 100% (T2 - T1 ) R(T1 ) Voff (T2 ) - Voff (T1 ) (T2 - T1 )
TCVoff =
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
PACKAGES
Preliminary
SM8
SO8
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
Preliminary
TDFN8
DIE
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07
MAGNETIC ANGLE SENSOR KMT32B
Preliminary
ORDERING CODE
KMT32B SO8 KMT32B SM8 KMT32B TDFN8 KMT32B chip 300130?? 30013030 30013050 30013000
LEGAL DISCLAIMER
This product is not designed for use in life support appliances, devices or systems where malfunction of this product can reasonably be expected to result in personal injury. HL Planartechnik GmbH customers using or selling this product for use in such applications do so at their own risk and agree to fully indemnify HL Planartechnik GmbH for any damages resulting from such improper use or sale. This data sheet contains target specifications for product development which my be subject to changes without notice.
HL PLANARTECHNIK GmbH * Hauert 13 * 44227 Dortmund * Germany * www.hlplanar.de service@hlplanar.de * phone: +49-(0)231-97400 * fax: +49-(0)231-974020
KMT32B_PreliminaryDataSheet (2007-01-12)-1.doc Last update 19.01.07

▲Up To Search▲

Price & Availability of KMT32B

	To Download KMT32B Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .