ELMOS E910.44

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
DRIVER IC
I/O IC
SENSOR IC
SENSOR INTERFACE IC
Co-integrated pressure sensor
Tilt angle sensor
ÿ Hall sensor IC
ÿ Hall sensor IC
E910.44
FEATURES
ÿ
ÿ
DESCRIPTION
Supply voltage range 2.0V to 6.0V
The IC contains a Hall sensor and the appropriate measurement
Hall Sensor with two magnetic switching
system. It detects three levels of upright magnetic field: positive,
thresholds
ÿ
ÿ
PINNING
near zero and negative. These information are provided at two bi-
Provides three field strength ranges:
nary coded outputs for any logic or uC. The sampling rate is about
negative, near zero and positive
10kHz (typ.) allowing fast movement detection.
field strength
In order to attain a very low average current consumption, the IC
Two binary coded outputs for the recognised
ÿ
Extremely low integral current consumption
ÿ
High measuring rate of typically 10k samples
mode with very low power consumption.
Slow measuring mode and/ or increased
With two mode pins it is possible to bring th IC (statically) into a
does short measurements and holds the result at the output until
of < 26µA in standard mode.
the next cycle. During the hold-phase, the IC switches to stand-by
per second in standard mode.
ÿ
sensitivity can be statically adjusted.
ÿ
ÿ
slow mode, reducing the current consumption furthermore. The
– 40°C to + 125°C operating temperature
second pin switches into a mode of increased sensitivity, where
SO8 package
PACKAGE
Pin
Name
Description
1
VDD
Supply voltage
2
OUT1
3
OUT2
4
GND
5
TST _ 1/GAIN
6
TST _ 2
7
TST _ 3
8
SLOW
lower magnetic fields can be detected.
Output: ‘0‘ -Field very positive or Low Bat
‘1’- Field not positive (-> near nil or negative)
Output: ‘0‘ -Field very negative
‘1’- Field not positive (-> near nil or negative)
VDD
1
8
OUT1
2
7
OUT2
3
6
GND
4
5
SLOW
TST_3
TST_2
TST_1/GAIN
Ground
Sensitivity switching:
connect to GND: normal sensitivity;
connect to VDD: increased sensitivity;
pin not to be left open in the application
Connect to ground
Connect to ground
Switching the trigger rate:
connect to GND: normal trigger rate;
connect to VDD: V triggerrate;
pin not to be left open in the application
APPLICATION
ÿ
ÿ
ÿ
Motor speed and postition control
Magnetic field detection
Proximity switch
BLOCK DIAGRAM
VDD
VDD
LOW BAT
supply
ON
Vint
Vref
+
POS
OUT1
_
Hall-
µC
ctrl.
Vref.
+
plate
NEG
OUT2
_
Autozero
clock
Measure
MODE
84
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication
has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.
Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.
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elmos product catalog june 2005
85