Philips Semiconductors Product speci?cation
Integrated rotational speed sensor KMI16/1
DESCRIPTION
The KMI16/1 sensor detects rotational speed of ferrous
gear wheels and reference marks.
The sensor consists of a magnetoresistive sensor
element, a signal conditioning integrated circuit in bipolar
technology and a ferrite magnet.
The frequency of the digital current output signal is
proportional to the rotational speed of the target wheel.
The open collector (OC) output allows for a high degree of
flexibility in the design of subsequent conditioning
electronics.
PINNING
CAUTION
Do not press two or more products together against their
magnetic forces. Do not expose products to strong
magnetic ?elds of more than 30 kA/m.
PIN SYMBOL DESCRIPTION
1VCC DC supply voltage
2Vout open collector output
3 GND ground
handbook, halfpage
123 MBK766
Fig.1  Simplified outline (SOT477B).
QUICK REFERENCE DATA
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
VCC DC supply voltage 4.5 5 16 V
ICC DC supply current (pin 1) 4 10 14 mA
VCEsat OC saturation voltage −− 1V
dmax maximum sensing distance 2.4 2.9 − mm
ft operating tooth frequency 0 − 25000 Hz
Tamb ambient operating temperature −40 − 150 °C

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