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HAL2XY Datasheet(PDF) 4 Page - Micronas |
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HAL2XY Datasheet(HTML) 4 Page - Micronas |
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4 / 17 page  HAL 2xy DATA SHEET 4 Jan. 11, 2010; DSH000141_003EN Micronas Hall-Effect Sensor Family Release Note: Revision bars indicate significant changes to the previous edition. 1. Introduction The HAL 2xy Hall switch family is produced in CMOS technology. The sensors include a temperature-com- pensated Hall plate with active offset compensation, a comparator, and an open-drain output transistor. The comparator compares the actual magnetic flux through the Hall plate (Hall voltage) with the fixed reference values (switching points). Accordingly, the output tran- sistor is switched on or off. In addition the HAL22y sensors features a power-on and undervoltage reset. The active offset compensation leads to magnetic parameters which are robust against mechanical stress effects. In addition, the magnetic characteristics are constant in the full supply voltage and temperature range. The sensors are designed for industrial and automo- tive applications and operate with supply voltages from 3.8 V to 24 V in the ambient temperature range from −40 °C up to 125 °C. For HAL22y the minimum supply voltage is 4.3 V. The HAL 2xy family is available in the SMD package SOT89B-3 and in the leaded versions TO92UA-5 and TO92UA-6. 1.1. Features – switching offset compensation – operates from 3.8 V to 24 V supply voltage (HAL22y minimum supply voltage is 4.3 V) – power-on and undervoltage reset in case of HAL22y – operates with static magnetic fields and dynamic magnetic fields up to 10 kHz – overvoltage protection at all pins – reverse-voltage protection at VDD-pin – magnetic characteristics are robust against mechanical stress effects – short-circuit protected open-drain output by thermal shut down – constant switching points over a wide supply volt- age and temperature range – the decrease of magnetic flux density caused by rising temperature in the sensor system is compen- sated by a built-in negative temperature coefficient of the magnetic characteristics – superior temperature stability for automotive or industrial applications – high ESD rating – EMC corresponding to ISO 7637 1.2. Family Overview This sensor family consists of sensors with latching and unipolar output behavior. Family members with power-on and undervoltage reset (HAL22y): Type Switching Behavior Sensitivity see Page 201 unipolar low 12 202 latching high 12 203 latching medium 12 204 latching low 12 206 unipolar high 12 207 unipolar low 12 208 unipolar medium 12 210 unipolar high 12 211 unipolar with inverted output (north polarity) high 12 212 unipolar low 12 Type Switching Behavior Sensitivity see Page 220 latching high 12 221 unipolar low 12 |
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