s
s
s
s
s
s
Chopper Stabilized Amplifier Stage
CMOS for Optimum Stability, Quality and Cost
Dual Output
4.5V to 28V Operation
Phase/Direction Detection (B)
Pulse Doubling Output (C)
s
s
s
s
Direction Detector
Speed Sensor
Shaft Encoding
Position Sensing
Part No.
MLX90224 A
MLX90224 B
MLX90224 C
Temperature Suffix
L
L
L
Package
VA
VA
VA
Temperature Range
-40
o
C to 150
o
C Automotive
-40
o
C to 150
o
C Automotive
-40
o
C to 150
o
C Automotive
1
Voltage
Regulator
V
DD
The MLX90224 series are dual Hall effect latches. It
includes two Hall effect latch functions of which typi-
cal thresholds are +/- 2.0 mT. In each latch, the mag-
netic flux detection is performed by a switched silicon
Hall plate. The B
OP
and B
RP
are temperature-compen-
sated and give a sensitivity temperature coefficient of
500 ppm/
o
C to compensate popular magnets.
The MLX90224 A, C output transistor will be 鈥渓atched
on鈥?(B
OP
) in the presence of a sufficiently strong South
pole magnetic field facing the marked side of the pack-
age. Similarly, the output will be 鈥渓atched off鈥?(B
RP
) in
the presence of a North field. Spacing on the plates is
1.85mm.
The MLX90224 B series are designed for direction
detection with a high speed chopper which provides
15碌s delay.
Replaced with Logic for
MLX90224 B
2
Chopper
OUTPUT
1
4
Chopper
OUTPUT
2
3
GND
Note:
Static sensitive device, please observe ESD precautions.
MLX90224 Dual Hall Effect Latch
Rev 1.2
8/May/99
Page 1