2000 Jun 26 2
Philips Semiconductors Product specification
Integrated rotational speed sensor KMI15/2
FEATURES
• Digital current output signal
• Zero speed capability
• Wide air gap
• Wide temperature range
• Insensitive to vibration
• EMC resistant.
DESCRIPTION
The KMI15/2 sensor detects (rotational) speed and
reference mark detection of magnetized targets
(1)
.
The sensor consists of a magnetoresistive sensor
element, a signal conditioning integrated circuit in bipolar
technology and a magnetized ferrite magnet.
The frequency of the digital current output signal is
proportional to the rotational speed of a gear wheel.
PINNING
(1) The sensor contains a customized integrated circuit. Usage in
hydraulic brake systems and in systems with active brake
control is forbidden.
CAUTION
Do not press two or more products together against their
magnetic forces.
PIN DESCRIPTION
1V
CC
2V−
Fig.1 Simplified outline; (SOT453A).
handbook, halfpage
MBH780
12
QUICK REFERENCE DATA
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
CC
DC supply voltage 0.5 12 16 V
I
CC (low)
current output signal low − 7 − mA
I
CC (high)
current output signal high − 14 − mA
f
t
operating frequency 0 − 25000 Hz
T
amb
ambient operating temperature −40 − +85 °C
