BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
DRIVER IC
I/O IC
SENSOR IC
Co-integrated pressure sensor
Tilt angle sensor
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Hall sensor IC
SENSOR INTERFACE IC
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Hall sensor IC
FEATURES
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E910.44
DESCRIPTION
The IC contains a Hall sensor and the appropriate measurement
system. It detects three levels of upright magnetic field: positive,
near zero and negative. These information are provided at two bi-
nary coded outputs for any logic or uC. The sampling rate is about
10kHz
(typ.) allowing fast movement detection.
In order to attain a very low average current consumption, the IC
does short measurements and holds the result at the output until
the next cycle. During the hold-phase, the IC switches to stand-by
mode with very low power consumption.
With two mode pins it is possible to bring th IC (statically) into a
slow mode, reducing the current consumption furthermore. The
second pin switches into a mode of increased sensitivity, where
lower magnetic fields can be detected.
PINNING
Pin
1
2
3
4
5
6
7
8
Name
VDD
OUT1
OUT2
GND
TST _ 1/GAIN
TST _ 2
TST _ 3
SLOW
Description
Supply voltage
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)
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
VDD
OUT1
OUT2
GND
1
2
3
4
Supply voltage range
2.0V
to
6.0V
thresholds
PACKAGE
Hall Sensor with two magnetic switching
Provides three field strength ranges:
Two binary coded outputs for the recognised
Extremely low integral current consumption
High measuring rate of typically
10k
samples
Slow measuring mode and/ or increased
–
40
°C to +
125
°C operating temperature
sensitivity can be statically adjusted.
per second in standard mode.
of <
26µA
in standard mode.
field strength
negative, near zero and positive
8
7
6
5
SLOW
TST_3
TST_2
TST_1/GAIN
SO
8
package
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
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Magnetic field detection
Proximity switch
Motor speed and postition control
BLOCK DIAGRAM
VDD
LOW BAT
VDD
supply
ON
Vint
Vref
+
Hall-
POS
OUT1
_
Vref.
ctrl.
+
_
NEG
µC
OUT2
plate
Autozero
clock
Measure
MODE
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.
www.elmos.de | sales@elmos.de
84
elmos product catalog june
2005
85
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