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DISCRETE SEMICONDUCTORS
DATA SHEET
KM110BH/2430; KM110BH/2470 30 and 70 angle sensor hybrids
Preliminary specification Supersedes data of November 1994 File under Discrete Semiconductors, SC17 1996 Nov 08
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
FEATURES * Angle measuring range 30 or 70 * Contactless, therefore wear-free and no microlinearity problems * Easy to mount, ready for use * Analog voltage output signal * Operating temperatures up to 125 C * Precision of 0.5 in the temperature range (-15 +15) * EMC resistant * Sample kit with magnet available. DESCRIPTION The KM110BH/2430 and the KM110BH/2470 are sensor modules for contactless measurement of angular displacements of strong magnetic fields. The modules are a ready-trimmed (sensitivity and zero point) combination of a magnetoresistive KMZ sensor and a signal conditioning circuit in hybrid technology. The KM110BH/2430 delivers a voltage output signal which is a linear function of the direction of the magnetic field. The KM110BH/2470 delivers a sinusoidal voltage output signal. The modules can be used for contactless angle measurement. PINNING PIN 1 2 3 SYMBOL GND VCC VO DESCRIPTION ground DC supply voltage output voltage
andbook, halfpage
KM110BH/2430; KM110BH/2470
1
2
3
MBD897
Fig.1 Simplified outline.
QUICK REFERENCE DATA SYMBOL VCC Toper PARAMETER DC supply voltage operating temperature angle range: KM110BH/2430 KM110BH/2470 VO output voltage range - - - -15 to +15 -35 to +35 0.5 to 4.5 - - - deg deg V 4.5 -40 MIN. 5 - TYP. 16 +125 MAX. V C UNIT
1996 Nov 08
2
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
EMC RESISTIVITY
KM110BH/2430; KM110BH/2470
The EMC compatibility is dependent on the assembly of the sensors. The EMC resistivity has to be tested in the final application. BLOCK DIAGRAM
handbook, full pagewidth
sensor
angle range
temperature compensation
current limiter V CC
VO
GND
MBB577
Fig.2 Block diagram.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VCC ICC Tstg Toper PARAMETER DC supply voltage supply current storage temperature operating temperature; note 1 output short-circuit duration Notes 1. For operations above Toper = 100 C, maximum VCC derates linearly from 16 V to 5 V at Toper = 125 C. 2. If pin 3 is shorted to either pin 1 or pin 2, a current may flow permanently, without damaging the device. 4.5 - -40 -40 MIN. 16 15 +125 +125 permanent; see note 2 MAX. V mA C C UNIT
1996 Nov 08
3
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
KM110BH/2430; KM110BH/2470
CHARACTERISTICS Tamb = 25 C; VCC = 5 V; RL = 1.7 k and a homogeneous magnetic field Hext = 100 kA/m in the sensitive layer of the KMZ sensor, unless otherwise specified. SYMBOL PARAMETER angle range: KM110BH/2430 KM110BH/2470 VO output voltage range: KM110BH/2430 KM110BH/2470 Vzero Voff zero point voltage zero point offset voltage: KM110BH/2430 KM110BH/2470 off S zero point offset angle sensitivity: KM110BH/2430 KM110BH/2470 P precision: KM110BH/2430 KM110BH/2470 FL deviation of linearity: KM110BH/2430 KM110BH/2470 Rp Rs FH SPmax reproducibility resolution hysteresis maximum angular speed: KM110BH/2430 KM110BH/2470 RL CL TCVzero load resistance load capacitance - - 1.7 - 60 150 - - - - - 10 deg/ms deg/ms k nF = 0; note 4 = 0; note 5 = 0; note 6 note 3 - - - - - 1 - <0.001 <0.001 <0.05 - - - - - %FS %FS deg deg deg -20 to +100 C related to hybrid edges; see Fig.7 = 0; note 2 137 73 - 0.2 0.5 0.5 1.2 deg deg 140 74.5 143 76 mV/deg mV/deg linear; see Fig.4 sinusoidal; see Fig.5 = 0 related to sinusoidal sensor characteristic; see Fig.5 - - - - - - 0.5 to 4.5 0.5 to 4.5 2.5 25 15 1 - - - - - 3 V V V mV mV deg note 1 - - -15 to +15 -35 to +35 - - deg deg CONDITIONS MIN. TYP. MAX. UNIT
Temperature coefficients (-40 to +100 C) temperature coefficient of zero point voltage: KM110BH/2430 KM110BH/2470 TCS temperature coefficient of sensitivity -20 to 100 C - - - 0.2 0.1 100 x 10-6 0.6 0.3 - mV/K mV/K K-1
1996 Nov 08
4
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
Notes to the characteristics
KM110BH/2430; KM110BH/2470
1. Refer to Fig.3. The magnetic field Hext = 100 kA/m can be achieved using the magnets listed in Table 1. 2. The sensitivity will change slightly with +0.33% per 10% magnetic field increase if Hext deviates from 100 kA/m. 3. Deviation from best straight line in angle range. 4. Difference in output signal (expressed in degrees) between two zero point ( = 0) measurements, in which the zero point is approached from the same side of the measuring range (e.g. cycle: +15 0 +15 0). 5. The smallest detectable change of angle for = 0 (cycle: 0 ). 6. As note 4, but with the zero point being approached from the upper end and lower end of the measuring range respectively (cycle: +15 0 -15 0).
handbook, full pagewidth
d
S
N
1
2
3
MBD900
Fig.3 Optimum magnet position relative to the sensor module.
1996 Nov 08
5
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
KM110BH/2430; KM110BH/2470
handbook, halfpage
5
MBD891
VO
handbook, halfpage
5
MBD890
(V) 4
VO (V) 4
3
3
2
2
1
1
0 -30
0
-15
0
15 (deg) 30
50
30
0
30 (deg) 50
Fig.4
KM110BH/2430 output signal as a function of angle position.
Fig.5
KM110BH/2470 output signal as a function of angle position.
handbook, halfpage
2
MBD888
(deg) 1
0
KM110BH/2430
-1 KM110BH/2470
-2 -40
Tamb = -25 to +85 C. = 0 for Tamb = 25 C and VO = 2.5 V. increases by a factor 2 in the temperature range: VO = 2.5 + 2.128 x sin(2) for -36.5 +36.5. Tamb = 25 C; VCC = 5 V; Hext = 100 kA/m.
-20
0
20
(deg)
40
Fig.6 Maximum angle error as a function of the angle position. 1996 Nov 08 6
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
KM110BH/2430; KM110BH/2470
handbook, halfpage
D
17.0 0.1
E
3.3 0.1
11.8 0.25
F
2.55 0.1
1
2
3 10.15 0.25
MBD899
Dimensions in mm. D, E, F : reference points for sensor assembly. D, E : definition of reference side for angle .
Fig.7 Reference data for hybrid assembly and magnet positioning.
Table 1
Magnets for angle sensor hybrid DIMENSIONS(1) (mm) 11.2 x 5.5 x 8 6x3x5 8 x 3 x 7.5 2.1 0.7 0.5 d(2) (mm) TOLERANCE(3) d (mm) 0.30 0.15 0.30 ECCENTRICITY(4) (mm) 0.25 0.15 0.20 Tamb (C) -55 to +125
MATERIAL Sm2Co17
Notes 1. The magnetization is always parallel to the latter dimensions given. 2. Distance (d) between magnet and KMZ sensor front as shown in Fig.3. 3. Maximum deviation of distance (d) for which the change in sensor output signal is smaller than 0.5% of full scale sensor signal. 4. Maximum deviation of magnet rotational axis to sensor rotational axis for which the change in sensor output signal is smaller than 0.5% of full scale sensor signal.
1996 Nov 08
7
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
APPLICATION INFORMATION The sensor hybrids KM110BH/2430 and KM110BH/2470 are available with different electrical contacts: 1. Stretched pins with a pitch of 2.54 mm; these pins are recommended for connector and/or cable connections (see Fig.9). 2. Double 's' bent pins (see Fig.10) with a pitch of 5.71 mm; bent pins are recommended for rigid soldered connections to compensate for mechanical stress. Quote type numbers KM110BH/2430G and KM110BH/2470G respectively for these hybrids.
handbook, halfpage
KM110BH/2430; KM110BH/2470
VO
VO VCC
SENSOR
RL
MBD834
GND
Fig.8 Application circuit.
1996 Nov 08
8
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
PACKAGE OUTLINES
KM110BH/2430; KM110BH/2470
handbook, full pagewidth
20.3
0.20 0.05 10.15 0.25 0.7 0.05
2.0 max
0.5 min
A 23.6 0.20 0.05
11.8 0.25
1
0.1 0
0.8 min 0.10 1.1 0.05 0.55 (1) 0.3
0.8 min
1.8 max
0.25 (1) 0.05
MBD895
7.61 (1) 0.3
2.54 (2)
2.54 (2)
Dimensions in mm. Area 'A' free of SMD devices. (1) Dimension before bath soldering, maximum dimension after bath soldering: 0.7 mm. (2) Pitch tolerance: 0.2 mm.
Fig.9 Outline of KM110BH/2430 and KM110BH/2470.
1996 Nov 08
9
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
KM110BH/2430; KM110BH/2470
handbook, full pagewidth
20.3
0.20 0.05 10.15 0.25 0.7 0.05
2.0 max
0.5 min
A 23.6 0.20 0.05
11.8 0.25
1
0.1 0
0.8 min
1.1
0.10 0.05
0.8 min 0.55 (1) 0.3 5.71 (2) 0.25 (1) 0.05 1.8 max
MBD894
4.44 (1) 0.3
5.71 (2)
Dimensions in mm. Area 'A' free of SMD devices. (1) Dimension before bath soldering, maximum dimension after bath soldering: 0.7 mm. (2) Pitch tolerance: 0.2 mm.
Fig.10 Outline of KM110BH/2430G and KM110BH/2470G.
1996 Nov 08
10
Philips Semiconductors
Preliminary specification
30 and 70 angle sensor hybrids
DEFINITIONS Data Sheet Status Objective specification Preliminary specification Product specification Limiting values
KM110BH/2430; KM110BH/2470
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
1996 Nov 08
11
Philips Semiconductors - a worldwide company
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For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 1996
Internet: http://www.semiconductors.philips.com
SCA52
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
147021/1200/02/pp12
Date of release: 1996 Nov 08
Document order number:
9397 750 01125

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