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. www.elmos.de | [email protected] elmos product catalog june 2005 85