The HAL 5xy family consists of different Hall switches produced in CMOS technology. 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). Accordingly, the output transistor is switched on or off.

Features

♦ Switching offset compensation at typically 62 kHz

♦ Operates from 3.8 V to 24 V supply voltage

♦ Overvoltage protection at all pins

♦ Reverse-voltage protection at VDD-pin

♦ Magnetic characteristics are robust

regarding mechanical stress effects

♦ Short-circuit protected open-drain output by thermal shut down

♦ Operates with static magnetic fields and

dynamic magnetic fields up to 10 kHz

♦ Constant 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 magnetic characteristics

♦ Ideal sensor for applications in extreme

automotive and industrial environments

♦ EMC corresponding to ISO 7637

♦ Operates from −40 °C to 170 °C junction temperature

Major Applications

The HAL 5xy is the optimal system solution for applications, such as:

♦ Endposition detection

♦ RPM measurement of motors in various applications, such as power window

♦ Brushless DC motors

♦ RPM measurements in flow meters

♦ Replacement of micro switches