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HAL5XY

Multipurpose Hall-Effect Sensor Family

Micronas 

PRODUCT INFORMATION

HAL 5xy

Sept/2006

HAL 5xy

Multipurpose Hall-Effect Sensor Family

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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