MLX90254
Differential Dynamic Hall Effect Sensor
Features and Benefits
Differential hall sensor
Low consumption
Excellent repeatability performance
Large airgap range
Large supply voltage range
Distance between Hall plates : 2.25 mm
Applications
Crankshaft sensor
Camshaft sensor
ABS sensor
Gear tooth sensor
Speed sensor
Ordering Information
Part No.
MLX90254
Temperature Suffix
L (-40° to 150°C)
C
Package Code
VA (4 leads)
1. Functional Diagram
2
2. Description
The MLX90254 is a Differential Dynamic Hall
Effect Sensor which has been developed for
automotive crankshaft and ABS (anti-lock brake
system) applications. The IC, combined with a
magnet placed at his back, offers speed and
position sensing of ferromagnetic tooth-wheels
in dynamic operation (non zero speed). Its low
hysteresis enables it to operate over a wide
range of air gaps from -40° to 150°C.
C
The use of two Hall cells makes the operation
sensitive to a rotation of the IC around its normal
axis.
The output structure is an Open-Drain NMOS
transistor with a capability of 25 mA under 24V
and protected against short-circuits. The IC is
packaged in 4-SIP VA.
Voltage
Regulator
4
Filter
S . ( B1 - B2 )
Filter
3
Pin 1 – Not used
Pin 2 – Vdd (Supply)
Pin 3 – Vss (Ground)
Pin 4 - Output
3901090254
Rev. 005
Page 1 of 9
Datasheet
Jun/04
MELEXIS [ Melexis Microelectronic Systems ]
