HAL501 datasheet(42/48 Pages) MICRONAS

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HAL 519

DATA SHEET

April 15. 2010; DSH000020_004EN

Micronas

4.11. HAL 519

The HAL 519 is a very sensitive unipolar switching

sensor with an inverted output sensitive only to the

magnetic north polarity (see Fig. 4–41).

The output turns high with the magnetic north pole on

the branded side of the package and turns low if the

magnetic field is removed. The sensor does not

respond to the magnetic south pole on the branded

side, the output remains low. For correct functioning in

the application, the sensor requires only the magnetic

north pole on the branded side of the package.

Magnetic Features:

– switching type: unipolar inverted, north sensitive

– high sensitivity

–typical BON: −3.5 mT at room temperature

–typical BOFF: −5.5 mT at room temperature

– operates with static magnetic fields and dynamic

magnetic fields up to 10 kHz

– typical temperature coefficient of magnetic switching

points is

−1000 ppm/K

Applications

The HAL 519 is the optimal sensor for all applications

with the north magnetic polarity and weak magnetic

amplitude at the sensor position where an inverted

output signal is required such as:

– solid-state switches,

– contactless solution to replace microswitches,

– position and end-point detection, and

– rotating speed measurement.

Fig. 4–41: Definition of magnetic switching points for

the HAL 519

Magnetic Characteristics at TJ = −40 °C to +170 °C, VDD = 3.8 V to 24 V,

Typical Characteristics for VDD = 12 V

Magnetic flux density values of switching points.

Positive flux density values refer to the magnetic south pole at the branded side of the package.

The hysteresis is the difference between the switching points BHYS = BON − BOFF

The magnetic offset is the mean value of the switching points BOFFSET = (BON + BOFF) / 2

BOFF

BON

VOL

Output Voltage

BHYS

Parameter

On point BON

Off point BOFF

Hysteresis BHYS

Magnetic Offset

Unit

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

−40 °C

-5.4

-3.8

-2.1

-7.7

-5.9

-4.3

1.6

2.1

2.8

−

-4.8

−

°C

-5

-3.6

-2

-7.2

-5.5

-3.8

1.5

1.9

2.7

-6.2

-4.5

-3.8

140

°C

-5.1

-3.1

-1.7

-6.8

-4.8

-3.1

1.7

2.6

−

-4

−

170

°C

-5.2

-3

-1.5

-6.8

-4.6

-2.8

0.9

1.6

2.6

−

-3.8

−

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