KMI16/1,115 NXP Semiconductors, KMI16/1,115 Datasheet - Page 4

• Manufacturer Part Number: KMI16/1,115
• Description: SPEED SENSOR ROTATIONAL SOT477B
• Manufacturer: NXP Semiconductors
• Type: Special Purposer

Specifications of KMI16/1,115

• Sensing Range: 2.9mm
• Voltage - Supply: 4.5 V ~ 16 V
• Current - Supply: 14mA
• Current - Output (max): 20mA
• Output Type: Digital, Open Collector
• Features: Gear Tooth Type
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-477B
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 934055232115; KMI16/1 T/R; KMI16/1 T/R

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The KMI16/1 sensor is sensitive to the motion of ferrous
gear wheels or reference marks. The functional principle is
shown in Fig.3. Due to the effect of flux bending, the
different directions of magnetic field lines in the
magnetoresistive sensor element will cause an electrical
signal. Because of the chosen sensor orientation and the
direction of ferrite magnetization, the KMI16/1 is sensitive
to movement in the ‘y’ direction in front of the sensor only
(see Fig.2).
The magnetoresistive sensor element signal is amplified,
temperature compensated and passed to a Schmitt trigger
in the conditioning integrated circuit (see Fig.4). The digital
output signal level is independent of the sensing distance
within the measuring range (see Fig.10). A (3-wire) output
current enables safe transfer of the sensor signal to the
detecting circuit (see Fig.5). The integrated circuit housing
is separated from the sensor element housing to optimize
the sensor behaviour at high temperatures.
2000 Sep 05
handbook, full pagewidth
Integrated rotational speed sensor
sensor
z
gear wheel
(a)
y
magnet
(b)
Fig.3 Functional principle.
field lines
magnetic
4
handbook, halfpage
y
Fig.2 Component detail of the KMI16/1.
(c)
x
direction
motion
of
magnet with
direction of
magnetization
sensor
IC
Product specification
(d)
KMI16/1
x
MBK767
MRA957
z