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Part Number KM110BH

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DATA SHEET
Preliminary specification
Supersedes data of November 1994
File under Discrete Semiconductors, SC17
1996 Nov 08
DISCRETE SEMICONDUCTORS
KM110BH/2430; KM110BH/2470
30
°
and 70
°
angle sensor hybrids
1996 Nov 08
2
Philips Semiconductors
Preliminary specification
30
°
and 70
°
angle sensor hybrids
KM110BH/2430;
KM110BH/2470
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
SYMBOL
DESCRIPTION
1
GND
ground
2
V
CC
DC supply voltage
3
V
O
output voltage
Fig.1 Simplified outline.
andbook, halfpage
MBD897
1
2
3
QUICK REFERENCE DATA
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
CC
DC supply voltage
4.5
5
16
V
T
oper
operating temperature
-
40
-
+
125
°
C
angle range:
KM110BH/2430
-
-
15 to +15
-
deg
KM110BH/2470
-
-
35 to +35
-
deg
V
O
output voltage range
-
0.5 to 4.5
-
V
1996 Nov 08
3
Philips Semiconductors
Preliminary specification
30
°
and 70
°
angle sensor hybrids
KM110BH/2430;
KM110BH/2470
EMC RESISTIVITY
The EMC compatibility is dependent on the assembly of the sensors. The EMC resistivity has to be tested in the final
application.
BLOCK DIAGRAM
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Notes
1. For operations above T
oper
= 100
°
C, maximum V
CC
derates linearly from 16 V to 5 V at T
oper
= 125
°
C.
2. If pin 3 is shorted to either pin 1 or pin 2, a current may flow permanently, without damaging the device.
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
CC
DC supply voltage
4.5
16
V
I
CC
supply current
-
15
mA
T
stg
storage temperature
-
40
+125
°
C
T
oper
operating temperature; note 1
-
40
+125
°
C
output short-circuit duration
permanent; see note 2
Fig.2 Block diagram.
handbook, full pagewidth
MBB577
sensor
angle
range
temperature
compensation
current
limiter
GND
V CC
VO
1996 Nov 08
4
Philips Semiconductors
Preliminary specification
30
°
and 70
°
angle sensor hybrids
KM110BH/2430;
KM110BH/2470
CHARACTERISTICS
T
amb
= 25
°
C; V
CC
= 5 V; R
L
= 1.7 k
and a homogeneous magnetic field H
ext
= 100 kA/m in the sensitive layer of the
KMZ sensor, unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
angle range:
note 1
KM110BH/2430
-
-
15 to +15
-
deg
KM110BH/2470
-
-
35 to +35
-
deg
V
O
output voltage range:
KM110BH/2430
linear; see Fig.4
-
0.5 to 4.5
-
V
KM110BH/2470
sinusoidal; see Fig.5
-
0.5 to 4.5
-
V
V
zero
zero point voltage
= 0
°
-
2.5
-
V
V
off
zero point offset voltage:
related to sinusoidal sensor
characteristic; see Fig.5
KM110BH/2430
-
±
25
-
mV
KM110BH/2470
-
±
15
-
mV
off
zero point offset angle
related to hybrid edges;
see Fig.7
-
1
3
deg
S
sensitivity:
= 0
°
; note 2
KM110BH/2430
137
140
143
mV/deg
KM110BH/2470
73
74.5
76
mV/deg
P
precision:
-
20 to +100
°
C
-
KM110BH/2430
0.2
0.5
deg
KM110BH/2470
0.5
1.2
deg
FL
deviation of linearity:
note 3
KM110BH/2430
-
±
1
-
%
FS
KM110BH/2470
-
-
-
%
FS
R
p
reproducibility
= 0
°
; note 4
-
<0.001
-
deg
R
s
resolution
= 0
°
; note 5
-
<0.001
-
deg
FH
hysteresis
= 0
°
; note 6
-
<0.05
-
deg
SP
max
maximum angular speed:
KM110BH/2430
-
60
-
deg/ms
KM110BH/2470
-
150
-
deg/ms
R
L
load resistance
1.7
-
-
k
C
L
load capacitance
-
-
10
nF
Temperature coefficients (
-
40 to +100
°
C)
TCV
zero
temperature coefficient
of zero point voltage:
KM110BH/2430
-
0.2
0.6
mV/K
KM110BH/2470
-
0.1
0.3
mV/K
TCS
temperature coefficient
of sensitivity
-
20 to 100
°
C
-
100
×
10
-
6
-
K
-
1
1996 Nov 08
5
Philips Semiconductors
Preliminary specification
30
°
and 70
°
angle sensor hybrids
KM110BH/2430;
KM110BH/2470
Notes to the characteristics
1. Refer to Fig.3. The magnetic field H
ext
= 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 H
ext
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
°
).
Fig.3 Optimum magnet position relative to the sensor module.
handbook, full pagewidth
MBD900
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2
3
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N
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