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HAL508 Datasheet(PDF) 1 Page - Micronas |
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HAL508 Datasheet(HTML) 1 Page - Micronas |
1 / 2 page HAL 5xy Sept/2006 PRODUCT INFORMATION HAL 5xy Multipurpose Hall-Effect Sensor Family PRODUCT INFORMATION The HAL 5xy family consists of different Hall switches produced in CMOS technol- ogy. All sensors include a temperature- compensated 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). Accord- ingly, the output transistor is switched on or off. The sensors of this family differ in the switching behavior and the switching points. The active offset compensation leads to constant magnetic characteristics over sup- ply voltage and temperature range. In addi- tion, the magnetic parameters are robust against mechanical stress effects. The sensors are designed for industrial and automotive applications and operate with supply voltages from 3.8 V to 24 V in the ambient temperature range from –40 °C up to 150 °C. All sensors are available in the SMD-pack- age SOT89B-1 and in the leaded versions TO92UA-1 and TO92UA-2. Features V Switching offset compensation at typi- cally 62 kHz V Operates from 3.8 V to 24 V supply voltage V Overvoltage protection at all pins V Reverse-voltage protection at VDD-pin V Magnetic characteristics are robust regarding mechanical stress effects V Short-circuit protected open-drain out- put by thermal shut down V Operates with static magnetic fields and dynamic magnetic fields up to 10 kHz V Constant switching points over a wide supply voltage range V The decrease of magnetic flux density caused by rising temperature in the sen- sor system is compensated by a built-in negative temperature coefficient of the magnetic characteristics V Ideal sensor for applications in extreme automotive and industrial environments V EMC corresponding to ISO 7637 V Operates from −40 °C to 170 °C junction temperature Major Applications The HAL 5xy is the optimal system solution for applications, such as: V Endposition detection V RPM measurement of motors in various applications, such as power window V Brushless DC motors V RPM measurements in flow meters V Replacement of micro switches |
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