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HAL114UA-K Datasheet(PDF) 3 Page - Micronas |
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HAL114UA-K Datasheet(HTML) 3 Page - Micronas |
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3 / 17 page  HAL11x 3 Micronas Hall Effect Sensor Family in CMOS technology Release Notes: Revision bars indicate significant changes to the previous edition. 1. Introduction The HAL 11x family consists of different Hall switches produced in CMOS technology. All sensors include a temperature-compensated Hall plate, a comparator, and an open-drain output transistor. The comparator compares the actual magnetic flux through the Hall plate (Hall voltage) with the fixed refer- ence values (switching points). Accordingly, the output transistor is switched on or off. The sensors of this family differ in the switching behavior. The sensors are designed for industrial and automotive applications and operate with supply voltages from 4.5 V to 24 V in the ambient temperature range from –40 °C up to 125 °C. All sensors are available in an SMD-package (SOT-89B) and in a leaded version (TO-92UA). 1.1. Features – operates from 4.5 V to 24 V supply voltage – overvoltage protection – reverse-voltage protection at VDD-pin – short-circuit protected open-drain output by thermal shut down – operates with static magnetic fields and dynamic mag- netic fields up to 20 kHz – stable switching points over a wide supply voltage range – the decrease of magnetic flux density caused by rising temperature in the sensor system is compensated by a built-in negative temperature coefficient of the mag- netic characteristics 1.2. Family Overview The types differ according to the mode of switching. Type Switching Behavior see Page HAL 114 unipolar 10 HAL 115 bipolar 12 Bipolar Switching Sensors: The output turns low with the magnetic south pole on the branded side of the package and turns high with the magnetic north pole on the branded side. The output state is not defined for all sensors if the magnetic field is removed again. Some sensors will change the output state and some sensors will not. Unipolar Switching Sensors: The output turns low with the magnetic south pole on the branded side of the package and turns high if the mag- netic field is removed. The sensor does not respond to the magnetic north pole on the branded side. 1.3. Marking Code All Hall sensors have a marking on the package surface (branded side). This marking includes the name of the sensor and the temperature range. Type Temperature Range K E C HAL 114 114K 114E 114C HAL 115 115K 115E 115C |
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