KM110BH-2470
DATA SH EET
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°≤α≤+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
2V
CC
DC supply voltage
3V
O
output voltage
Fig.1 Simplified outline.
ndbook, halfpage
MBD897
123
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
α 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
V
O
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
=5V; R
L
= 1.7 kΩ 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
α 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 − 0.5to 4.5 − V
V
zero
zero point voltage α =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
α
off
zero point offset angle related to hybrid edges;
see Fig.7
− 1 3 deg
S sensitivity: α =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 α =0°; note 4 − <0.001 − deg
R
s
resolution α =0°; note 5 − <0.001 − deg
FH hysteresis α =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 −−kΩ
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
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