KMI15/1 データシートの表示（PDF） - NXP Semiconductors.
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KMI15/1 Datasheet PDF : 4 Pages
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KMI15 – 7/14 mA current output (2-wire)
KMI18 – open collector output (3-wire)
CONSTANT
CURRENT
SOURCE
VOLTAGE CONTROL
VCC
SENSOR
AMPLIFIER
SCHMITT
TRIGGER
SWITCHABLE
CURRENT
SOURCE
V-
mra958
VOLTAGE CONTROL
SENSOR
AMPLIFIER
SCHMITT
TRIGGER
The MR sensor signal is amplified, temperature compensated and passed to a Schmitt trigger.
KMI20 – 7/14 mA current output (2-wire), extended air gap
VOLTAGE CONTROL
CONSTANT
CURRENT
SOURCE
VCC
SENSOR
ADJUSTABLE
AMPLIFIER
OFFSET
CANCELLATION
Fc = 0 Hz
SMART
COMPARATOR
SWITCHABLE
CURRENT
SOURCE
V-
DIGITAL CONTROL UNIT
ON-CHIP
OSCILLATOR
mbl238
ICC
14 mA
7 mA
T
tp
The MR sensor signal is fed into the conditioning IC. The offset, gain and
hysteresis are digitally adapted to ensure an exceptional air gap capability.
7/14 mA output signal as a function of time
VCC
Vout
open collector
output
GND
mgl348
mra960
Product overview
Sensor type
KMI15/1
KMI15/2
KMI15/4
KMI18/1
KMI18/2
KMI18/4
KMI20/1
KMI20/2
KMI20/4
typ. sensing distance (mm) Tooth frequency (Hz)
0.9 - 2.9
0 - 25.000
0.5 - 2.7
0 - 25.000
0.5 - 2.3
0 - 25.000
0.9 - 2.9
0 - 25.000
0.5 - 2.7
0 - 25.000
0.5 - 2.3
0 - 25.000
0.9 - 3.5*
0 - 2.500
0.5 - 3.2*
0 - 2.500
0.5 - 2.8*
0 - 2.500
Target
note 1
note 2
note 1
note 1
note 2
note 1
note 1
note 2
note 1
* + 1 mm dynamic reserve | note 1 - ferrous target | note 2 - magnetized target
Interface
Current
Current
Current
Open collector
Open collector
Open collector
Current
Current
Current
Magnet size (mm)
8 x 8 x 4.5
3.8 x 2 x 0.8
5.5 x 5.5 x 3
8 x 8 x 4.5
3.8 x 2 x 0.8
5.5 x 5.5 x 3
8 x 8 x 4.5
3.8 x 2 x 0.8
5.5 x 5.5 x 3
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